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Your search returned over 400 essays for "citric acid concentration affects calcium"
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Discovering the Secrets of Soda - Have you ever wondered what ingredients are are really inside soda and what effect it does to your body. Could there be ways companies make soda healthier but taste the same. The main ingredients soda have in them are sugar, caffeine and different acids that create the fizzy taste. Caffeine is added in soda as a stimulant. Stimulants increase activity happening in your brain. Stimulations have elevate your mood and your awareness. Caffeine has several good effects like increasing energy or mental awareness....   [tags: ingredients, acid, bones] 554 words
(1.6 pages)
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Uses and Advantages of Citric Acid - ... Place 1 lb. (454 g) of citric acid powder in a non-metallic pot. Set the pot aside. 4-Boil the water. Get 1 pint (470 ml) of water to a boil in a non-metallic pot. 5-Empty the boiling water over the powder, stirring repeatedly with a non-metallic spoon until all the powder is dissolved. 6-Filter the solution. Using filter paper or cheesecloth, damage the solution through into another non-metallic pot or bowl to take away any solids that haven't dissolved. 7-Let the solution to cool to room heat....   [tags: Acid, Base, Chemistry] 1065 words
(3 pages)
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Analyzing Citric Acid - The most widely used method for synthesizing citric acid was discovered by an American chemist named James Currie in 1917 in order to contend with the lack of citrus imports caused by the First World War. This method requires the fungus culture “Aspergillus niger”. This mould is fairly common in nature but special strains are used by the major citric acid producing companies to increase the fungus’s production of citric acid. This method involves substances that contain glucose such as simple sugar or molasses being fed to the fungus....   [tags: Chemistry]
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1704 words
(4.9 pages)
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Calcium Metabolism and Calcium Homeostasis - Calcium regulation has significant effects on the human body's capacity to maintain homeostasis. Around 99% of the body's calcium is found within the skeleton in the form of calcium salts. The remaining 1% is found in blood and controlled within a very narrow range by an elaborate system of controls to provide for fundamental processes (Marieb & Hoehn 2010). Calcium is the most abundant cation found in human bodies, vital to normal function of a host of processes including: nerve excitability, hormone secretion, blood clotting, taste transduction, muscle function and cellular adhesion (Hutchins 2014)....   [tags: Calcium regulation]
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1413 words
(4 pages)
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Investigating the Concentration of Citric Acid - Investigating the Concentration of Citric Acid Problem ------- I have been set the task of determining the concentration of a sample of citric acid, using only a 1.0 M solution of sodium hydroxide and any laboratory glassware that is required. I have also been given the RMM of citric acid as 210g and I have been told that one mole of citric acid will react with 3 moles of sodium hydroxide. My Experiment ------------- Using this information I have determined that the best way to conduct this experiment is to do a titration....   [tags: Papers] 1229 words
(3.5 pages)
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Investigating How the Concentration of Hydrochloric Acid Affects the Rate of Reaction with Calcium Carbonate - Investigating How the Concentration of Hydrochloric Acid Affects the Rate of Reaction with Calcium Carbonate Aim === Calcium Carbonate reacts with dilute hydrochloric acid to produce carbon dioxide. The aim of this investigation is to find out how the concentration of hydrochloric acid affects the rate of reaction with calcium carbonate. In my experiment, I will use an overall volume of 50 cm³ of 2moles of dilute hydrochloric acid and keep that constant throughout the entire experiment....   [tags: Papers] 2242 words
(6.4 pages)
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Investigating How Concentration of Acid Affects the Reaction Between Calcium Carbonate and Hydrochloric Acid - Investigating How Concentration of Acid Affects the Reaction Between Calcium Carbonate and Hydrochloric Acid Introduction ============ According to the collision theory temperature, concentration, surface area and catalysts all affect rates of reaction as shown in the diagrams below. Increasing any of these should increase the number of collisions and so increase the reaction rate up to an optimum point. Increasing the temperature causes the particles to collide with more energy and more frequently, thereby increasing the reaction rate....   [tags: Papers] 3026 words
(8.6 pages)
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how the concentration of acid affects the rate of reaction between hydrochloric acid and calcium carbonate (magnesium ribbon) - An investigation to find out how the concentration of acid affects the rate of reaction between hydrochloric acid and calcium carbonate (magnesium ribbon) Planning -------- The aim of my investigation is to find out how changing the concentration of acid affects the rate of the reaction between CaCO3 and HCl. To make my experiments fair tests, I will only change one variable: the concentration of the acid. I will have to keep the volume of the acid, the mass and size of the marble chips and the temperature of the acid the same in all my experiments to insure a fair test, because by changing any of the above I will change the conditions and therefore the results will be inaccurate and the...   [tags: GCSE Chemistry Coursework Investigation] 3452 words
(9.9 pages)
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An Investigation to see How the Concentration of Hydrochloric acid affects the Rate of Reaction with Calcium Carbonate - An Investigation to see How the Concentration of Hydrochloric acid affects the Rate of Reaction with Calcium Carbonate I am going to investigate how concentration of hydrochloric acid affects the rate of reaction between hydrochloric acid and indigestion tablets which contain mainly calcium carbonate. From my background knowledge from class work and books, (see references) I have found out that if you increase the concentration of hydrochloric acid, the rate of reaction will increase and the time of the reaction will decrease....   [tags: GCSE Chemistry Coursework Investigation] 3036 words
(8.7 pages)
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An Investigation To Find Out How The Concentration Of Hydrochloric Acid Affects The Rate Of Reaction With Calcium Carbonate - An Investigation To Find Out How The Concentration Of Hydrochloric Acid Affects The Rate Of Reaction With Calcium Carbonate Background Knowledge I am doing this experiment to find out whether the concentration of hydrochloric acid affects the rate of reaction with calcium carbonate. In this experiment, when you add calcium carbonate (marble chips) to hydrochloric acid, carbon dioxide is given off. EQUATION [IMAGE]CaCo₃ + 2HCl CaClâ‚‚ + Hâ‚‚O +C0â‚‚ [IMAGE]Calcium Carbonate + Hydrochloric acid Calcium Chloride + Water + Carbon Dioxide....   [tags: Papers] 2165 words
(6.2 pages)
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Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid - Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid Plan: In my experiment I will measure the rate of reaction between calcium carbonate and hydrochloric acid. The rate of the reaction is the speed that the reaction takes place so by measuring the rate I will measure the amount of time the reaction takes. Hydrochloric acid is a strong acid that is found in digestive juices in the stomach, it is also used for cleaning metals before they are coated. Calcium carbonate has a few forms including chalk and limestone the main use of these two materials is in the making of concrete, which is used for many things such as buildings....   [tags: Papers] 1786 words
(5.1 pages)
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The Effect of Concentration of Acid on the Rate of Reaction With Calcium Carbonate - The Effect of Concentration of Acid on the Rate of Reaction With Calcium Carbonate Calcium + Hydrochloric ð Calcium + Carbon + Water Carbonate Acid Chloride Dioxide CaCO3 (s) + 2HCl (aq) ð CaCl2 (aq) + CO2 (g) + H2O (l) Introduction I will be using the reaction between calcium carbonate and hydrochloric acid to see how the concentration of acid affects the rate of a reaction. By doing the above experiment I will prove that the higher the concentration of acid, the faster a reaction will occur....   [tags: Papers] 1229 words
(3.5 pages)
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Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid - Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid Planning ======== The aim is too investigate what factors affect the rate of reaction between calcium carbonate and hydrochloric acid. The variable I am intending to use in the experiment is Hydrochloric Acid. I want to find out how different strengths of acid affect the speed of the rate of reaction. The variables that could affect the rate of reaction are: · Temperature · Concentration of Acid · Surface Area · Increase Pressure (this is not applicable in this experiment) · Catalyst (this is not applicable in this experiment) · Volume · Mass of Calcium Carbonate · S...   [tags: Papers] 2664 words
(7.6 pages)
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Rate of reaction between Hydrochloric Acid and Calcium Carbonate - Rate of reaction between Hydrochloric Acid and Calcium Carbonate Calcium carbonate reacts with hydrochloric acid to form carbon dioxide gas. One way of following the rate of reaction at which it reacts is to measure the volume of carbon dioxide produced at certain time intervals during the reaction. CaCO + 2HCl CaCl + H O + CO =========================== Calcium Carbonate + Hydrochloric Acid Calcium Chloride + Water + Carbon Dioxide Equipment --------- Delivery tube Conical flask Hydrochloric acid Calcium carbonate chips Burette Beaker Electric scales Measuring cylinder Tub Water Electric timer Goggles Retort stand The different factors that can affect my experiment are the temperatu...   [tags: GCSE Chemistry Coursework Investigation] 3115 words
(8.9 pages)
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the rate of reaction between calcium carbonate and hydrochloric acid - I am going to investigate the rate of reaction between calcium carbonate and hydrochloric acid. I will look at the various factors affecting the reaction and select one variable to change, while the others keep constant in order to carry out a deta... Investigating Rate of Reaction Aim I am going to investigate the rate of reaction between calcium carbonate and hydrochloric acid. I will look at the various factors affecting the reaction and select one variable to change, while the others keep constant in order to carry out a detailed investigation....   [tags: GCSE Chemistry Coursework Investigation] 2893 words
(8.3 pages)
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Carbon Dioxide produced by Reaction between Hydrochloric Acid and Calcium Carbonate - Investigate the effect of changing the concentration of hydrochloric acid and the volume of carbon dioxide produced by a reaction between hydrochloric acid and marble chips (calcium carbonate). Chemistry Coursework To investigate the effect of changing the concentration of hydrochloric acid and the volume of carbon dioxide produced by a reaction between hydrochloric acid and marble chips (calcium carbonate) Planning experimental procedures Aim In this coursework I will be investigating to see how the concentration of acid affects the rate of reaction with marble chips....   [tags: GCSE Chemistry Coursework Investigation]
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2527 words
(7.2 pages)
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Experiment is to investigate the rate of reaction between hydrochloric acid and calcium carbonate - Experiment is to investigate the rate of reaction between hydrochloric acid and calcium carbonate Hydrochloric acid + Calcium Carbonate Þ Calcium Chloride + Water + Carbon Dioxide 2HCl (aq) CaCo3 (s) CaCl2(s) H2O (aq) CO2 (g) There are a number of variables in this experiment and these are listed below as input variables and outcome variables. The input variables are the ones that I can change in order to affect the experiment and the outcome variables are the ones I will measure to see how the input variable has affected it....   [tags: GCSE Chemistry Coursework Investigation] 2155 words
(6.2 pages)
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The Effect of Temperature on the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate - The Effect of Temperature on the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate Hydrochloric Acid + Calcium Carbonate à Calcium Chloride + Carbon Dioxide + Water 2HCl + CaCO3 à CaCl3 + CO2 + H2O Aim. To find out how the temperature of acid effects the rate of the reaction between Hydrochloric Acid and Calcium Carbonate. I will do this by changing the temperature of the Hydrochoric acid and keeping the Calcuim Carbonate the same. Theory. By starting at a low temperature, the particles do not collide with much energy giving a slow reaction....   [tags: Papers] 1166 words
(3.3 pages)
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The Effects of Acid Rain on Statues - The Effects of Acid Rain on Statues Introduction ------------ During this investigation, I will use dilute hydrochloric acid as the acid rain and crushed calcium carbonate as the chemical of the statues. Then I will time how long it takes for the limestone powder to react until there is no more left when the acid is added to it. Rain contains acid naturally as it collects carbon dioxide from the air and makes carbonic acid. Rain normally has a pH of about 5.5 – it is slightly acidic due to the carbon dioxide dissolved in it....   [tags: Acid Rain Chemical Reactions Essays] 2232 words
(6.4 pages)
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Finding the Concentration of Calcium Hydroxide by Titration with Hydrochloric Acid. - Finding the Concentration of Calcium Hydroxide by Titration with Hydrochloric Acid. The Problem Perform a titration upon Calcium Hydroxide to find the concentration by using Hydrochloric Acid of 3 different concentrations as following 2 molar, 0.5 molar and 0.1 molar. In order to calculate the results must be within 0.05cm3 of each other. Apparatus Burette Volumetric Pipette Beakers Conical Flasks Volumetric Flasks Funnel Clamp Stand White Tile Fair Test For a fair test I will have to make sure that I change the equipment for each test so that the residue of the last test doesn't alter my results and also I must use the same amounts...   [tags: Papers] 581 words
(1.7 pages)
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The Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid - The Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid Planning. CaCO3 (s) + 2HCl (aq) ---- CaCl2 (aq) + H2O (l) + CO2 The rate of reaction depends on how hard and how often the reacting particles collide with each other. A rate of reaction is how fast a reaction takes place. The main variables that can change a rate of reaction are; 1. Temperature. 2. Concentration. 3. Surface area (of a solid). 4. A catalyst. 5. Pressure. 1. When the temperature is increased all the particles move quicker, therefore there are more collisions....   [tags: Papers] 508 words
(1.5 pages)
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Calcium: Helping Our Nerves Function - ... Lesser-impact side effects involve muscle twitching, insomnia, and confusion. Toxicity: Although it is not common to take in excess amount of calcium, it certainly is possible. One common cause of excess calcium is the overuse of calcium supplements. Amounts greater than 2,000 mg a day may lead to hypercalcemia, which can occur from hormonal imbalance and milk alkali syndrome. Long-standing effects of too much calcium can lead to kidney stones, constipation, and reduction of iron, magnesium, zinc, and phosphorus....   [tags: damage, deficiency, bone, absorption] 619 words
(1.8 pages)
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The Midwife’s Role in Informing Pregnant Women of the Importance of Folic Acid - How the provision of information in the antenatal period can positively affect health and life style choices in the pregnant woman and her family. It is a recognised certainty that nutrition is a fundamental requirement to sustain a healthy lifestyle and is also extremely valuable when recovering from an illness or an injury. Nutrients are absorbed in the body and this physiological process is essential for homeostasis and ensuring equilibrium is sustained within the body as without enough food and drink the body will not function correctly (Edwards & Thomas, 2009)....   [tags: Importance of Folic Acid]
:: 28 Works Cited
1933 words
(5.5 pages)
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The Importance of a Calcium Rich Diet - The Importance of a Calcium Rich Diet      Calcium is essential to normal functioning in a healthy individual; this only leaves the question of where to get it. There are many sources available to meet daily requirements, two of which are dairy products and supplemental vitamins. Both of these options have qualities that make them appealing, so choosing might be difficult or even come to a middle ground. Some of the considerations to be made are: what calcium is, the types of calcium in each source, how much should be ingested daily, the body’s ability to absorb and tolerate calcium from the chosen source, and the interactions that might occur with other medicines and required daily nutri...   [tags: Health Nutrition Diet Exercise Essays] 1309 words
(3.7 pages)
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Finding Out the Effect of Hydrochloric Acid on Its Reaction Time with Calcium Carbonate - Finding Out the Effect of Hydrochloric Acid on Its Reaction Time with Calcium Carbonate Aim: To Find out if the concentration of Hydrochloric acid effects its reaction time with calcium carbonate Hypothesis:The reaction I am going to be investigating is [IMAGE]Calcium Carbonate + Hydrochloric Acid Calcium Chloride + Carbon Dioxide + Water [IMAGE]CaCO3(S) + 2HCL(aq) CaCl2(AQ) + CO2(g) + H2O I predict that an increase in the concentration of Hydrochloric acid will result in an increase in the speed of the rate of reaction it has with Calcium Carbonate....   [tags: Papers] 1129 words
(3.2 pages)
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Investigate the rate of reaction between Calcium Carbonate and Hydrochloric Acid at different concentrations - Investigate the rate of reaction between Calcium Carbonate and Hydrochloric Acid at different concentrations Aim: To Investigate the rate of reaction between Calcium Carbonate and Hydrochloric Acid at different concentrations. Background Knowledge: I know from my knowledge of science, that by adding together a carbonate and an acid, that a salt, water and Carbon Dioxide are produced. Therefore in order to measure the rate of reaction, one of these products needs to be measured, and the rate at which it is produced can be used to define the rate of the reaction....   [tags: GCSE Chemistry Coursework Investigation] 1070 words
(3.1 pages)
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Investigate how the concentration of hydrochloric acid effects the rate at which it reacts with calcium carbonate - Investigate how the concentration of hydrochloric acid effects the rate at which it reacts with calcium carbonate Investigation Plan Aim === Investigate how increasing the concentration of the solution hydrochloric acid effects and alters the rate at which it reacts with marble chip, calcium carbonate. Rate of reaction is affected by six main factors * Temperature * Surface area of a solid * Concentration of a solution * Pressure of a gas * By using catalysts * Using biological catalysts called Enzymes As outlined above the rate of a reaction increases when temperature increases, the concentration of dissolved reactants increases, the pressure of gases increases, solid reactants are in...   [tags: GCSE Chemistry Coursework Investigation] 2892 words
(8.3 pages)
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Investigating the Rate of Reaction Between Acid and Calcium Carbonate Chips - Investigating the Rate of Reaction Between Acid and Calcium Carbonate Chips Introduction ============ The rate of reaction is a measure of a change that happens in a unit of time. [IMAGE] My aim is to measure the rate of reaction between hydrochloric acid and calcium carbonate chips by using different concentrations of hydrochloric acid. The equation for this experiment is [IMAGE] I plan to measure the amount of carbon dioxide gas given off every five seconds....   [tags: Papers] 2299 words
(6.6 pages)
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Investigating How the Concentration of Hydrochloric Acid Affects the Speed of the Reaction with Marble Chips - Investigating How the Concentration of Hydrochloric Acid Affects the Speed of the Reaction with Marble Chips Introduction ============ There are many factors that will affect the rate of reaction between hydrochloric acid and calcium carbonate. Some of them are as follows: * Temperature - If the temperature is higher, then the molecules in the solution have more energy, causing them to move around more which would mean they would react faster. * The surface area of the calcium carbonate - If the calcium carbonate is in a sphere shape, then there is not as much surface area than there would be if it was in a flat cuboid shape or perhaps...   [tags: Papers] 719 words
(2.1 pages)
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Investigating How Varying the Concentration of Hydrochloric Acid Affects the Decomposition of Marble Chips - Investigating How Varying the Concentration of Hydrochloric Acid Affects the Decomposition of Marble Chips My aim for this experiment is to discover how varying the concentration of hydrochloric acid (HCl) affects the decomposition of marble chips (calcium carbonate). The equation for this reaction is: [IMAGE] CaCO 3 +2HCl CaCl 2 +H 2 O+CO 2 Background knowledge ( Found via the internet and 'Key Science Chemistry' by Eileen Ramsden) What is limestone....   [tags: Papers] 1672 words
(4.8 pages)
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How the concentration of an acid affects the rate of reaction on marble chips - How the concentration of an acid affects the rate of reaction on marble chips Background: These different speeds of reaction are referred to as their rates. The rate of reaction depends on how often and how hard the reacting particles collide with each other. Particles have to collide in order to react, and the have to collide hard enough as well. This is called the collision theory. When the temperature is increased the particles all move quicker. If they are moving quicker then they are going to have more collisions....   [tags: GCSE Chemistry Coursework Investigation] 1986 words
(5.7 pages)
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Potent Drugs: The LSD or Acid - LSD, or ‘acid’ by street name, is one of the world’s most well-known and most potent drugs. Its major component is Lysergic Acid Diethylamide, which is found in a fungus that grows on grains, such as rye, and some wild grasses. LSD is colorless, tasteless, and odorless. It is illegally made into crystal form first and is later converted to several different liquid forms, such as tablets, microdots, absorbable paper, gelatin squares, or capsules for distribution (Hoffman, page 56). Users call an LSD experience a “trip”....   [tags: effects, trip, Lysergic Acid Diethylamide] 523 words
(1.5 pages)
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How Acid Rain Affects the Aquatic Ecosystem - How Acid Rain Affects the Aquatic Ecosystem Abstract This paper shows that acid rain is a reality. It is destroying our freshwater ecosystems and must be stopped in order to save them. If the problem is not fixed soon the aquatic ecosystems will be destroyed. Table of Contents 1. What is acid rain. 2. Acidification of Freshwater 3. Effects of Freshwater Acidification 4. Where is Affected the most. 5. What is being done to fix it. 6. Conclusion 7. References What is acid rain. Acid rain is polluted rain, snow, or fog....   [tags: Geology]
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1383 words
(4 pages)
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How the Concentration of an Acid Affects the Rate of Reaction - How the Concentration of an Acid Affects the Rate of Reaction Prediction ========== For a reaction to take place there must be enough energy for the particles to collide & react. So as the concentration increases so will the rate of reaction because there are more acid particles in the solution for the magnesium to collide & react with. Therefore I think the rate of reaction will speed up as the concentration gets higher, for instance 1M will react twice as fast as 0.5m....   [tags: Papers] 898 words
(2.6 pages)
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The Effects of Acid Deposition on Humans and the Environment - Acid Deposition One of the biggest environmental problems that needs dealing with in society today is acid deposition. It is largely caused by humans, and causes much pollution to the environment and harms people and buildings as well. Although there are minimal positive sides to this issue, the negatives far outweigh it and call people around the world to take action to reduce and even solve this problem. Coming in both wet and dry forms, acid deposition consists of acidic pollutants including nitrogen oxides and sulfur oxides that have been deposited from the atmosphere to the surface of the earth....   [tags: Environmental Ecology Essays Pollution Acid Rain]
:: 5 Works Cited
1283 words
(3.7 pages)
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What is Acid Rain? - Acid rain has been proven to have damage forests, fresh waters and soils, killing insect and aquatic life-forms. It also causes damage to buildings and impacts on human health. Many people do not know what acid rain actually is. Acid rain is any form of precipitation that is unusually acidic, low pH levels, higher than normal amounts of sulfuric and nitric acid, occurs naturally and from man made sources. Forms when gases react in the atmosphere with water, oxygen, and other chemicals (what is acid rain?)....   [tags: precipitation, pH levels, damage]
:: 3 Works Cited
1322 words
(3.8 pages)
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Determination of the Solubility of Calcium Hydroxide - Determination of the Solubility of Calcium Hydroxide Apparatus 250 cm3 volumetric flask 25cm3 pipette Pipette pump Burette 250cm3 conical flask Small funnel Rubber bung White ceramic tile Burette clamp G clamp Lab stand Quantities to be used 25cm3 Hydrochloric acid solution @ 0.3moldm-3 225cm3 Distilled Water Excess Methyl Orange indicator Excess Calcium Hydroxide solution @ 0.015moldm-3 Excess distilled water (for washing glassware) Making the Hydrochloric acid solution The hydrochloric solution provided is of a very high concentration compared to the concentration of the calcium hydroxide....   [tags: Papers] 1223 words
(3.5 pages)
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The Determination of the Solubility of Calcium Hydroxide - The Determination of the Solubility of Calcium Hydroxide I have to plan an experiment to find the solubility of calcium hydroxide, Ca(OH)2, in water. I have to make up a solution of calcium hydroxide and carry out a titration using hydrochloric acid solution of the chosen concentration. The equipment need is as below: · Solid calcium hydroxide · Methyl orange indicator · Volumetric flask (250cm3) · Clamp and boss · Clamp stand · Burette (50cm3) · Conical flask · Pipette (25cm3) · Pipette filler · Distilled water · White spotting tile · Hydrochloric acid of chosen concentration · Beaker x2 · Rubber bung · Funnel x2...   [tags: Papers] 1109 words
(3.2 pages)
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My aim for this experiment is to find out how concentration affects the rate of reaction, when marble chips reacts with hydrochloric acid. - My aim for this experiment is to find out how concentration affects the rate of reaction, when marble chips reacts with hydrochloric acid. Mansoor Khan An investigation to see how concentration affects the 1 rate of reaction. Introduction My aim for this experiment is to find out how concentration affects the rate of reaction, when marble chips reacts with hydrochloric acid. I am going to use calcium carbonate (marble chips) to react with hydrochloric acid that will produce carbon dioxide gas. The equation for this reaction is: Word equation: Calcium Carbonate + Hydrochloric acid Calcium Chloride + Carbon Dioxide + Water Symbol equation: CaCO 2HCl CaCl CO H O For my experiment, I will...   [tags: GCSE Chemistry Coursework Investigation] 2866 words
(8.2 pages)
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Determine the Concentration of Calcium Hydroxide - Determine the Concentration of Calcium Hydroxide 2HCl (aq) + Ca (OH)2(aq) [IMAGE] 2H20(l) + CaCl2(s) In this experiment I need to find out the concentration of calcium hydroxide. I am provided with 250cm3 of limewater, which has been made such that it contains 1g dm-3 of calcium hydroxide. To increase the accuracy of the results it would be helpful if the volume of the alkali equalled the volume of the acid used, and I know that the concentration of the alkali is approximately 1gmdm-3 which is roughly equal to 0.013mol by using the equation Mole = Mass / Mass of one mole =[IMAGE] =0.013 moldm-3 Also I am provided with hydrochloric acid, which has a c...   [tags: Papers] 459 words
(1.3 pages)
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How concentration affects the rate of reaction between Hydrochloric Acid and Sodium Thiosulphate - How concentration affects the rate of reaction between Hydrochloric Acid and Sodium Thiosulphate Chemistry Coursework How Concentration Affects a Reaction Aim: The aim of this experiment is to find out how concentration affects the rate of reaction between Hydrochloric Acid and Sodium Thiosulphate. Introduction: This experiment will be carried out by drawing a cross on a piece of paper and mixing hydrochloric acid and sodium thiosulphate together to see if the cross disappears. The concentration of hydrochloric acid would change every reaction to show that concentration effects a reaction....   [tags: GCSE Chemistry Coursework Investigation] 1294 words
(3.7 pages)
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Investigating What Affects the Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid - Investigating What Affects the Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid Aim To investigate what variables influence the rate of reaction between sodium thiosulphate and hydrochloric acid. The specific variable we will be examining will be the amount of acid. Background Information Table of Variables Variables How it will influence my reaction How I will control the variable Temperature When you raise the temperature of a solution, the molecules collide more frequently due to the fact that they have more energy....   [tags: Papers] 910 words
(2.6 pages)
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SA Being a Constituent of Plants Is Consumed by Herbivore Animals as Well as Humans - ... Accumulation of defense signaling molecule like SA, repress the Auxin signaling as a defense mechanism. SA treated plants showed the low concentrations of free auxin. (Wang etal). SA signaling is mediated by NPR1 gene, if it is mutated or knocked out in a plant cell, it may lead to generation of plants which are insensitive to SA. SA induces the formation of a trans-activating complex TGA2/NPR1 with help of two transcription factors, which induces the expression of PR1 proteins. Knocking out of TGA in some plants leads to decrease in PR1 protein accumulation, compromising SAR and increase in sensitivity to SA toxicity....   [tags: salicylic acid] 1410 words
(4 pages)
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How the change of Hydrochloric Acid concentration affects the rate of reaction with Marble Chips - How the change of Hydrochloric Acid concentration affects the rate of reaction with Marble Chips Aim To find if changing the concentration of an acid will increase or decrease the rate of the reaction when marble is dissolved in hydrochloric acid. With the equation CaCO3 + 2HCl CaCl2 +H2O + CO2. The rate of the reaction affects how quickly the CO2 is produced. Background Knowledge ==================== The rate of reaction depends on how often and how hard the reacting particles collide with each other....   [tags: GCSE Chemistry Coursework Investigation] 2292 words
(6.5 pages)
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Investigation of How Temperature Affects the Rate of Reaction of Sodium Thiosulphate and Hydrochloric Acid - Investigation of How Temperature Affects the Rate of Reaction of Sodium Thiosulphate and Hydrochloric Acid I am going to investigate how temperature affects the rate of the reaction of sodium thiosulphate and hydrochloric acid. WORD EQUATION Sodium thiosulphate + Hydrochloric acid [IMAGE] Sodium chloride (salt) + Sulphur + Water + Sulphur dioxide CHEMICAL EQUATION Na2S2O3 + 2HCl [IMAGE] 2NaCl + S + H2O + SO2 The temperature of the sodium thiosulphate will be changed by heating the solution to a known temperature....   [tags: Papers] 891 words
(2.5 pages)
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How Temperature Affects the Rate of Reaction in the Reaction of Magnesium and Hydrochloric Acid - How Temperature Affects the Rate of Reaction in the Reaction of Magnesium and Hydrochloric Acid Aim === I am trying to find out what affect heat has on the reaction between hydrochloric acid and magnesium. Introduction ============ There are a number of things that affect rates of reaction, such as temperature, concentration of acid, catalysts, agitation, surface area, and pressure in experiments. I have chosen to investigate temperature, which will be the only variable that I will change....   [tags: Papers] 1518 words
(4.3 pages)
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How the Concentration of Sodium Thiosulphate Affects the Rate of Reaction with Hydrochloric Acid - How the Concentration of Sodium Thiosulphate Affects the Rate of Reaction with Hydrochloric Acid Plan We will set up a conical flask on top a cross. We will vary the concentration of Sodium Thiosulphate by putting different amounts of Sodium Thiosulphate and water bye keeping the same total volume of 50cm³. We will then add 5cm³ of hydrochloric acid. We will time how long it takes for the cross to completely disappear from site after the reaction has completely finished....   [tags: Papers] 805 words
(2.3 pages)
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How Temperature Affects the Reaction between Sodium Thiosulphate and Hydrochloric Acid - How Temperature Affects the Reaction between Sodium Thiosulphate and Hydrochloric Acid Aim I am going to investigate the reaction between sodium thiosulphate and hydrochloric acid. The main aim is to find out how temperature affects the reaction; if it speeds it up, slows it down or changes it in any way. I will test the effects of temperature by timing how long it takes for a black cross to become non-visible underneath a beaker containing the reactants. I will consider what effect the temperature has on the number of collisions and explain my findings....   [tags: Papers] 1007 words
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Acid Rain - The world we live in today has become a nest for pollution, toxic waste and environmental deterioration. In order to improve our planet, acid rain is a main factor to be considered and must be controlled before the damage worsens. In order to understand what acid rain is, we must first understand the term “acidity”. Acidic is a way to describe chemical compounds and it is measured on the pH scale, a logarithmic measure of the concentration of hydrogen ions (H+) in precipitation (1). This scale is numbered 0 to 14, where substances with values below 7 are considered acidic and the ones above 7 are basic....   [tags: Environmental Science, Informative] 2147 words
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Historical Development and Administration of Valproic Acid - Historical Development Valproic acid has an analogue found in nature in the form of the valerian plant. This chemical was artificially synthesized in 1882 using the chemical in valerian as a reference. The chemical is a liquid at room temperature and was and was for a long time employed as a chemically inert solvent. Application for the drug was discovered as an anticonvulsant and antiepileptic drug in 1962 by the French researcher Pierre Eymard while he was comparing different compound for antisezure properties....   [tags: Breakdown, Usage, Effects]
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The Affects of Different Yeast on the Rate of Fermentation - AIM: To see how different yeast affect and influence the rate of fermentation, how much alcohol is being produced and how this affects the overall quality of wine produced. BACKGROUND INFORMATION: Alcohol, is mostly thought of as ethanol which is the alcohol which is found in alcoholic beverages such as wine and beer. But there are many different varieties of alcohol such as methanol, propanol and butanol. In chemistry terms “alcohol” is a compound of a hydroxyl group which is covalently bonded to a carbon chain which can be seen in figure 1....   [tags: Chemistry ] 1156 words
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How Eating and Drinking Affects the Voice - Greetings, fellow singers and friends. I am excited to present to you something I have wondered for a long time--something that could possibly open a whole new field of study--how eating and drinking affects the voice. An understanding of the different parts of the throat, and what it takes to actually sing is essential to proper singing technique. The major parts of the voice include the vocal folds, the larynx, salivary glands, and the diaphragm. The vocal folds (commonly known as vocal cords) are a pair of bands of mucous membrane stretched across the larynx....   [tags: singing do's and don'ts ] 876 words
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How Does Diet Affect the pH of a Body? - ... In additions, Say your body has a low pH, it will try to compensate by using all the alkaline minerals in the body. In this experiment, for sanitary purposes, I will be testing the pH of 10 people’s saliva, instead of blood. My hypothesis is that the acidifying foods being eaten will lower the pH of saliva, and that the acidic foods being eaten will increase the pH of my saliva. Every day after I eat a specified food in the morning, noon, and in the evening, I will wait one hour, and place my saliva on a pH test strip and record the result....   [tags: saliva, healthy, acid]
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Determination of the Relative Atomic Mass of Calcium - Determination of the Relative Atomic Mass of Calcium In this experiment, I will determine the relative atomic mass of calcium by two different methods. v By measuring the volume of hydrogen produced. v By titrating the lithium hydroxide produced. Method 1 -------- [IMAGE] v 0.10g of calcium used. v 100cm3 of distilled water used. Results Method 1 Mass of Calcium (g) Total volume of gas produced (cm3) 0.10 37 v Starting point of water in cylinder = 238cm3 v Ending point, after reaction complete, of water in cylinder= 201cm3 v (238 - 201 = 37) Deduction of 37cm3, therefore 37cm3 of hydrogen gas produced....   [tags: Papers] 986 words
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The Enthalpy Values for the Reaction Between Calcium Carbonate and Calcium Oxide with Hydrogen Chloride - The Enthalpy Values for the Reaction Between Calcium Carbonate and Calcium Oxide with Hydrogen Chloride [IMAGE] H3 [IMAGE]CaCO3 (s) CaO (s) + CO2 [IMAGE] [IMAGE] H1 HCl H2 HCl CaCl2 (aq) Results ======= Variables of CaCO3 ================== Mass of CaCO3 + weighing bottle 3.302 g Mass of empty weighing bottle 0.831 g Mass of CaC03 used 2.471 g Temperature of acid initially 18 C Temperature of solution after mixing 21 C Temperature change during reaction 3 C Variables of Temperature Mass of CaO + weighing bottle 2.362 g Mass of empty weighing bottl...   [tags: Papers] 587 words
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Acid Rain - Acid Rain Acid rain has become an environmental concern of global importance within the last decade. With the increasing environmental awareness of the "unhealthy" condition of our planet earth the concern about acid rain has not lessened. In brief, acid rain is rain with pH values of less than 5.6. When dealing with acid rain one must study and understand the process of making Sulfuric acid. In this project we will take an in depth look into the production of sulfuric acid, some of its uses and the effects of it as a pollutant in our environment....   [tags: Acid Rain Environmental Nature Essays]
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The Human's Impact on Acid Rain - The Human's Impact on Acid Rain Acid rain is any precipitation that is acidic in nature. Rain is already slightly acidic in nature because as it falls, it dissolves some of the carbon dioxide in the atmosphere and falls as very dilute carbonic acid. This is not significantly harmful to the environment Even though the concentration of Nitrogen oxides and sulphur oxides (which are the main causes of acid rain), are much less than the concentration of carbon dioxide in the atmosphere, the former gases are much more soluble and therefore have a much greater effect on the acidity of the precipitation....   [tags: Papers] 1212 words
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How Acid Rain Causes Damage to Art - ... When an acid oxidizes combines with rain, it makes rain more acidic than normal;-that is when you get acid rain. Acid rain problems have occurred all over this planet, but the problem that is most concerning to me is--------the damage acid rain causes to works of art, like statues and buildings. Works of art have been affected by acid rain in many different ways including enviormentally and economicaly/socially. Acid rain has damaged the enviroment in different ways. The Statue of Liberty was one of the most well known and famous monuments, but today, due to acid rain the Staute of Liberty has been experiencing some diffculties with maintaining its apperance....   [tags: statues, corrison, expense] 779 words
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The Effects of Acid Rain - The Effects of Acid Rain Acid rain looks, feels, and tastes just like clean rain, but there is a difference that is found on the pH scale. Acid rain is formed by one of three processes. In some cases hydrochloric acid can be directly let off into the atmosphere. Mostly nitrogen oxides or sulfuric dioxides are released into the atmosphere in the form of gases. After being released into the atmosphere, sulfur dioxide settle on the land and come in contact with dew that is also known as acid rain....   [tags: Papers] 515 words
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Chemistry and Effects of Acid Rain - ... Acid rains cause great harm to the environment. It is very harmful to the animals and other living organisms in water. Most lakes and streams have a pH level between 6-8. When acid rains hit the water, pH level goes down and water becomes acidic. The soil of these lakes and streams have an ability to neutralize the acidity of the soil. This is called buffering capacity. However, if the pH level is too low, this neutralization is not strong enough to keep the balanced levels. When water becomes too acidic, it dissolves harmful substances from soil such as aluminum and releases it to water....   [tags: industrial revolution, greenhouse gases] 609 words
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What Affects the Rate of Reaction? - What Affects the Rate of Reaction. Hypothesis To form a reaction the particles must collide in high speed. The faster the particles collide the more kinetic energy is produced. This produces a bigger reaction. There are five key variables that affect the rate of a reaction (in this case with a solid and a solution): * Change in temperature An increase in heat energy within the particles leads to more kinetic energy. Therefore there is more collision of particles and it increases the rate of the reaction....   [tags: Reaction Rates Energy Science Essays] 2334 words
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Investigating How Changing the Concentration of Hydrochloric Acid Affects the Rate of Reaction with Sodium Thiosulphate Solution - Investigating How Changing the Concentration of Hydrochloric Acid Affects the Rate of Reaction with Sodium Thiosulphate Solution Aim I aim to investigate how changing the concentration of Hydrochloric acid affects the rate of reaction with Sodium Thiosulphate solution. [IMAGE]Sodium + Hydrochloric Sodium + Water + Sulphur + Sulphur Thiosulphate Acid Chloride Dioxide (aq) (aq) (aq) (l) (g) (s) The reaction makes the solution go a yellow cloudy colour and a gas is given off....   [tags: Papers] 670 words
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Acid Rain and its Impact - Rain is a major component of the water cycle as it is held responsible for depositing most of the fresh water on Earth. (EPA USA, 2014) It not only provides suitable conditions for various ecosystems, but also provides water for hydroelectric power plants and crop irrigation. (Andrei, 2012) However, since the start of industrialization in the 18th century, humans have been abusing such important features of life and created acid deposition. (The Ledger, 2014) The pH scale is composed of values starting from zero, the most acidic, to 14.0, the most alkaline....   [tags: Rain, Water, Chemistry]
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The Reason and Response for Acid Rain - ... Acid Rain is a type of acid deposition. Acid deposition is the augmentation of acidic amalgamations on the Earth’s surface. Also it's basically rain that has been made acidic by Sulfur DiOxide ( SO2 ) and other pollutants. Acid rain is formed by the release of Sulfur Dioxide ( SO2 ) and Nitrogen Oxide ( NO2 ) into the atmosphere. Then the chemicals are absorbed into the rainwater and create acid rain. Acid rain , mostly comes from the chemicals emitted into the air by coal fired power plants....   [tags: sulfer dioxide, pollution, erosion ]
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The Problems with Sleep Deprivation - Sleep Deprivation Losing sleep produces significant consequences to the overall health of a body. There have been numerous tragedies in history linked to errors by tired, sleep-deprived humans. Two major events caused by fatigue were the Exxon Valdez Oil Spill and the NASA Challenger shuttle explosion. The horrendous outcomes of these events are why humans need a better understanding of how sleep affects their quality of life. (How) Sleep deprivation may cause severe physical health changes to your body as well as altering your mental well-being....   [tags: health, fatigue, affects, mental] 1131 words
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Taking a Look at Acid Rain - ... These include; watershed bedrock composition, base nutrient reserves and inputs, soil depth, landscape features vegetation type, disturbances and land use history. The most important factor being the ability of an ecosystem to neutralize acids i.e. it’s buffering capacity. The severity of damage to an ecosystem really depends on its critical load. This is a measure of the amount of acid deposition an ecosystem can handle without the effects of acid rain creating damage beyond repair (Middleton, 2008)....   [tags: environmental challenges] 1505 words
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My aim is to see how concentration affects the rate of reaction.Sodium Thisulphate + Hydrochloric acid sodium chloride - Science Coursework Plan I have been set a task to investigate the rates of reaction. Before I carry out my experiments I will have to draw up a plan to ensure that the experiments are carried out properly. Aim: my aim is to see how concentration affects the rate of reaction. Sodium Thisulphate + Hydrochloric acid sodium chloride + sulphur dioxide (Na2S2O3) Sulphur + water Control variable: I must make sure the temperature stays same. Independent variable: the concentration of sodium thisulphate....   [tags: Papers] 811 words
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Investigation into the solubility of Calcium Hydroxide Ca(OH)2 - Investigation into the solubility of Calcium Hydroxide Ca(OH)2 Planning ======== Calcium Hydroxide is a strong base which is alkaline in water. Lime water containing approximately 0.015 mol dm-3 will be used for the titration. HCl will be used also, and has a concentration of 0.3 mol dm-3 . Aim: The aim of the investigation is to determine the solubility of Calcium Hydroxide by calculating the concentration by means of a titration. Plan: Clamp stand Burette [IMAGE][IMAGE][IMAGE]Titration equipment will be used to carry out this experiment....   [tags: Papers] 919 words
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Effects of Acidic Depositon - ... The bar graph shows an incline at the Solution 2. Furthermore, the graph displays a further increase in Solution 3 and 4. However, a decline seems to appear at Solution 5. In spite of this, the increase continues at Solution 6 and 7. The results support the hypothesis - the solution with a higher pH will germinate the more mung beans. The results collected with Solution 5 rejects the hypothesis though, as Solution 2 and 4 germinated more mung beans. The data exhibits reliable results and allows the visuals of correlation....   [tags: acid rain water and agriculture] 868 words
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The Problem of Acid Rain - ... The more sulfuric and nitric acids present, the higher the acidity of the rain. On a 14 point scale, 7 being neutral, anything less than 7 is considered acidic and anything more is considered alkaline. Battery acid is about 1 acidity and lemon juice is around 2 acidity. Regular rain is between 5 and 6 acidity. Acid rain is somewhere between 2 and 5.5. The worst case of acid rain ever recorded was in Wheeling, West Virginia where the rain had an acidity of 2.2. These levels of acidity seriously harm plants, trees, and all other life....   [tags: air pollution, environmental issues] 723 words
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Detrimental Effects of Acid Rain - When sulfur and nitrogen oxides are emitted into the atmosphere they quickly oxidize and convert to gaseous acids, then return to the earth as acidic compounds in what is known as acid rain. On any ecosystem the precipitation falls one can see detrimental effects. When falling into a body of water it increases the pH decreasing fish population and biodiversity. Similarly on forest floor it increases the acidity of the soil weakening trees and other plants. Sulfur and Nitrogen oxides are emitted into the environment from both natural and manmade sources....   [tags: enviornment, emmissions, government] 1213 words
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Getting Enough Calcium through Food - ... Another popular choice is cottage cheese. One half-cup of low-fat cottage cheese provides 10% of the recommended daily value of calcium. Dairy products have consistently been found by researches to improve bone health and other calcium needs in the body across every age group. For those seeking non-dairy options to intake calcium, whether for taste or lactose-intolerant purposes, many options are available. Vegetables such as turnips, broccoli, cauliflower, and kaleo supply calcium amounts of 30-80 mg per half-cooked of every cooked serving....   [tags: dairy, vegetables, cooking, loss] 543 words
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Investigation: How does the concentration of acid affect the rate of reaction? - Investigation: How does the concentration of acid affect the rate of reaction. The aim of this investigation is to test how concentration affects the rate of reaction. My prediction for my investigation is that the higher the concentration, the faster the reaction will be. My reason behind my prediction is: · The higher the concentration, the more particles there are which will collide with enough energy to overcome activation energy, which is explained as the collision theory. Collision theory explains how chemical reactions occur and why rates of reaction differ....   [tags: GCSE Chemistry Coursework Investigation] 1397 words
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Air Pollution and Acid Rain - ... Some examples of people doing this are driving cars, because gasoline is a natural gas and since so many people are using it, there is a lot less gasoline, as well as a lot more pollution. A major amount of burning of fossil fuels is in electrical power plants which can release a lot of emissions. Another problem is the meat consumption of humans. Cows release methane into the air. Because of the higher demand for meat, people want more cows, and since they release methane into the air, and that is bad for the environment....   [tags: environmental issues] 1089 words
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What is Acid Rain? - ... Causes Acid deposition into the atmosphere can occur by volcanoes but the main cause is the release of sulphur dioxide and nitrogen oxide in the atmosphere during fossil fuel combustion. When these gases are released into the atmosphere, they reacts with oxygen and water along with other gases already present, to form sulfuric acid (3). Since gas emissions are the root cause of acid rain, cars, factories, trains and other road transportations can have a very strong impact on the increasing levels of pollution, therefore the increasing levels of acid rain....   [tags: acidic, pollutants,, air, deposition] 826 words
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The Enthalpy Change of the Thermal Decomposition of Calcium Carbonate - The Enthalpy Change of the Thermal Decomposition of Calcium Carbonate Results: For CaCO3: T1 = 17 T2 = 19 DT= 02 using 2.57g of CaCO3 For CaO: T1 = 18 T2 = 27 DT= 09 using 1.39g of CaO Analysis: In order to determine the enthalpy change for the thermal decomposition of calcium carbonate, we must work out the enthalpy changes for both the reactions of calcium carbonate and calcium oxide with hydrochloric acid. For CaCO3: Temperature change = 2ºC To find the enthalpy change of a reaction, we must first work out the amount of energy taken in by the reaction....   [tags: Papers] 1196 words
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Investigating the Rate of Reaction of Calcium Carbonate Chips - Investigating the Rate of Reaction of Calcium Carbonate Chips Introduction: ------------- In the reaction between calcium carbonate (marble chips) and hydrochloric acid a reaction occurs and the gas carbon dioxide escapes. In this experiment we are aiming to investigate how the rates of reaction of small and large marble chips change. We will be looking at both surface area and concentration. The experiment is done by reacting the CaCO3 with hydrochloric acid whilst a balance records any change in mass during the set amount of time....   [tags: Papers] 1632 words
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Exploring Factors That Affect the Rate of a Chemical Reaction Involving Magnesium and Hydrochloric Acid - What factors affect the rate of this chemical reaction: Magnesium + Hydrochloric Acid  Magnesium Chloride + Hydrogen Mg (s) + 2HCl (aq)  MgCl2 (aq) + H2 (g) Prediction I think that my results will show that the hydrochloric acid with a molarity of 2 will finish reacting the quickest because it is the strongest hydrochloric acid and I predict that the slowest experiment to finish reacting will be the 0.4 molar strength of hydrochloric acid. I think that the results will go slower and slower the nearer they are to the 0.4 strength of hydrochloric acid....   [tags: chemistry, chemistry experiment, lab report] 1528 words
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Potential Hydrogen and Acidity - Potential hydrogen, more often known as pH, is the measure of the acid levels of a solution and is represented by a number one through fourteen. If the pH of a substance is six or below it is considered an acid, but if a substance is measured to be eight or above it is considered basic, meaning it has a lesser acidic value. (Willi Evans) Hydrogen is the element that starts the formation of acids in soil. Therefore, the higher potential hydrogen level, the more acidic the soil is. (Rachel Lovejoy) As indicated by the numeric pH scale, the typical pH of soil is between 6.0 and 6.8....   [tags: pH, acid levels of a solution] 1017 words
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Lysergic Acid Diethylamide Analysis - Lysergic acid diethylamide is a hallucinogenic drug that was created in the 1930s. LSD has been used in many ways since the powerful effects of the drug were discovered. However, this drug is most commonly found used illegally. When sold, LSD can be found in several different forms and doses. Depending on the dose taken, the different short- and long-term effects can have more or less of an effect on the user. LSD mostly effects the brain. The drug changes some functions so greatly, the changed can may take years to fully recover....   [tags: drug addiction, lsd, hallucigenic drug]
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