Hansen’s Disease also known as Leprosy dates back to at least 4000b.c. Evidence of the disease’s presents in ancient times was found on an Egyptian papyrus dating from around 1500bc. These earlier cultures believed it was a curse or punishment from the gods. During the middle ages, the afflicted wore special clothing and rang bells to alert the uninfected of their presence. The first known origin of this disease is Egypt from here Roman Crusaders contracted the disease and brought it back to Europe
Hydrochloric acid is the clear colourless solutions of hydrogen chloride (HCl) in water, hydrochloric acid is also a highly corrosive substance and a strong mineral acid meaning they are formed from inorganic compounds, hydrochloric acid is a monoprotic acid meaning that it can only ionize one H+ ion. As a result hydrochloric acid can be used in a wide range of industrial practices such as removing rust from steel, ore processing, the production of corn syrup and making of PVC plastics. Hydrochloric
Does Concentrated Acid or Diluted Acid React Faster? Plan I am going to carry out a reaction between Magnesium ribbon and Hydrochloric acid. The aim of this investigation is to work out which reacts faster, concentrated acid or diluted acid. I will judge if the reaction is fast or slow by observing the bubbles which occur during the reaction and also observe if the Magnesium has disappeared. Only the concentration of the acid will be changed - the Magnesium is a solid. Magnesium +
Thiosulphate and Nitric Acid Planning Aim The aim of this investigation is to find out and observe how the temperature affects the rate of reaction. I am going to investigate the rate at which the solutions of nitric acid (HNO³) and sodium thiosulphate (Na²S²O³) turn cloudy (when mixed together), when the temperature is changed. Variables In this investigation I will only have one variable: § The temperature of both solutions (sodium thiosulphate and Nitric acid), so that I will
Investigating the effect of temperature on the reaction between Sodium Thiosulphate (Na2S2O3) and Hydrochloric Acid (HCl) Planning and Prediction Apparatus List Conical Flask 3 measuring cylinders Sodium Thiosulphate (Na2S2O3) Hydrochloric Acid (HCl) Thermometer Stop watch When sodium thiosulphate reacts with hydrochloric acid, the solution becomes opaque. I will investigate how the rate of this reaction is affected when the experiment is carried out at different temperatures. The reaction that
Introduction: In this lab we will be testing bodies of freshwater. We will be determining the quality of the water based on multiple factors including nitrates, phosphates, pH levels, and dissolved oxygen levels. All of these factors must be in appropriate ranges for the ecosystem to be healthy. Literature Review: There are many different elements and chemicals that can both positively and negatively affect freshwater ecosystems. Many different factors play into the survivability of a lake, pond
The bicarbonate then reacts with the hydrogen from the citric acid, and this reaction makes water and carbon dioxide. By mixing water with the Alka-Seltzer® tablet, the whole reaction process is started, and that process ultimately results in bubbles of carbon dioxide gas being given off. When the film canister is
take a breath in you allow oxygen into your lungs. When you release a breath you release carbon monoxide along with it. Respiratory alkalosis is when you breathe too fast or too deep and your carbon dioxide levels drop too low. This raises the pH of blood to pH levels above 7.45, making it become too alkaline. This is a common acid-base disorder in the elderly. This results from increased ventilation and may delay recovery, prolong hospitalizations, and affect clinical outcomes. (O'Connell, K. (2017
BSGE 7-1 Lab Report Problem Paragraph 1 Question: What is the effect of temperature on the dissolving time of an Alka-Seltzer? Alka-Seltzer is made up of baking soda, aspirin, and citric acid which gives the tablet the fizz when dropped in any temperature water. “Alka-Seltzer is a medication that works as a pain reliever and an antacid. (Antacids help neutralize stomach acidity, which can cause heartburn.)” (Science Buddies, Carbonation
The Rate Law for Chemical Reaction Among Hydrogen Peroxide, Iodide, and Acid To determine the rate law for a chemical reaction among hydrogen peroxide, iodide and acid, specifically by observing how changing each of the concentrations Experiment 3 Chemical Kinetics Objectives 1. To determine the rate law for a chemical reaction among hydrogen peroxide, iodide and acid, specifically by observing how changing each of the concentrations of H2O2, and H+ affects the rate of reaction.
concentration and do not dilute or mix up the solution with other solutions during the experiment Concentration of potassium iodate (1 M) If the concentration of potassium iodate differs for each trial, the different concentrations may manipulate how fast the change in color would appear in Erlenmeyer flask when it is titrated against sodium thiosulfate Use the right potassium iodate with the intended concentration and do not dilute the solution with other chemical solutions during the
Rate of Reaction of Dilute Hydrochloric Acid and Sodium Thiosulphate To investigate the change in rate of reaction between DILUTE HYDROCHLORIC ACID and SODIUM THIOSULPHATE as the concentration varies. PLAN A chemical reaction takes place over a specific period of time i.e. which is the time for the reactants to be formed into the products. If the reactants take a relatively short time to form the products, the reaction is known as a FAST one. The RATE of that particular reaction is
as there is a scale to calculate the acidity or alkalinity of a substance. The scale is from 0-14. Hydrochloric acid is 0 which means it is strongly acidic therefore it is dangerous and corrosive which means that it can burn the skin if you do not wear gloves. Hydrogen sulphide has a pH value of 4.1 this means that it is acidic as any value below 7 is acidic however it is a weak acid therefore it is not corrosive but it is toxic and harmful to the environment. The pH is important as this enables
What Affects the Rate of Breakdown of Hydrogen Peroxide by Enzymes Aim === The aim of this experiment is to find out how temperature and concentration affect the breakdown of hydrogen peroxide by an enzyme (yeast). I hope to achieve reliable results that will confirm my predictions. Prediction ========== I predict that if the concentration is high in the yeast then the speed of oxygen produced in the reaction with hydrogen peroxide will also be high. This is because the
Name: Stuart Edwards Topic: The effect of pH and temperature on the enzyme catalase. One Research Task: Proposal Draft 2 St. Stithians Boys College Content Rationale Pg. 2 Concept diagram Pg.2 Literature review Pg.3 Topic
Between Magnesium and Hydrochloric Acid Planning 1: The aim of this investigation is to find out the effect of acid concentration in the reaction between dilute hydrochloric acid and magnesium ribbon. The rate of a chemical reaction is a measure of how fast the reaction takes place. A high concentration of hydrochloric acid could mean a fast reaction whereas as a low concentration could mean a slow long reaction. I will be testing different concentrations of acid reacting with magnesium in two
the past 40 years, the Conodoguinet Creek has been plagued by two types of pollution, acid rain, and eutrophication. Acid rain is caused by the burning of fossil fuels. The fumes go up into the air and combine with the rain to create acidic substances. Eutrophication is caused by many things, such as fertilizers, detergents, farm runoff, sewage treatment runoff, and even people’s septic tanks. Most of the acid rain pollution in our area comes from traffic, the creation of power, and manufacturing
An experiment to find out how changing the concentration of acid affects the rate of reaction Planning Aim: I am to find out how changing the concentration of the hydrochloric acid (HCL) affects the rate of reaction. The hydrochloric acid will be reacting with marble chips (small, medium, large). During my experiment I will be changing one variable. This will be the concentration of the acid. I will use the concentration of HCL from 0.5 molar/dm3 to 3.0 molar/dm3. I will use 3grams
The Effect of Temperature on the Rate of Reaction of Sodium Thiosulphate and Hydrochloric Acid Sodium chloride + Sulphur dioxide + Sulphur Plan The rate of reaction is the speed that the reaction occurs at. It can be effected by the following: * Concentration of reactants * Temperature * Surface area of reactants * Presence of a catalyst Out of those factors, I am going to investigate the effect temperature has on the rate of reaction. I will do this by recording
How does Concentration affect the rate of reaction between Magnesium and Hydrochloric acid? Secondary resources: Chemical reactions only occur when reacting particles collide with each other, with sufficient energy to react, this is called the collision theory. The minimum amount of energy required to cause this reaction is called the Activation energy. There are four main factors which affect the rate of reaction. The first factor is: Temperature of reactants: When the temperature