The Effect of Sodium Carbonate on Hard Water Aim === In this experiment, we aim to investigate the effect of sodium carbonate on hard water. Method ====== Firstly, 25.00cm3 of a sample of water was pipetted into a clean conical flask. The pipette was used because this measures and delivers a very accurate amount of liquid (to the nearest hundredth of a cm3, or 0.01cm3), but care had to taken to make sure it was not held by the bulge, as this could have made the amount inaccurate
Determining the Concentration of a Sodium Carbonate Solution Calculating the quantities and the concentration of the reagents Sodium Carbonate + Hydrochloric acidà Sodium Chloride + Carbon Dioxide + Water Na CO + 2HCL à 2NaCl + CO +H O Calculating the approximate concentration of the sodium carbonate solution (mol dm ³) Approx = 5 5 = 0.0472mol dm ³ Concentration Mr
Softening Hard Water With Sodium Carbonate Prediction ---------- In a preliminary experiment, we discovered that adding 1g. Na2CO3 to hard water softened it slightly. We tested both tap water and distilled water with the sodium stearate and discovered that tap water was far harder than distilled water, we then tested tap water that 1g of Na2CO3 had been applied to. This solution was softer than the original tap water. The exact results were; Type of water Soap solution required
carbonate was weighed accurately and dissolved in distilled water in a 250 mL volumetric flask. The solution was then made up to the mark with distilled water and mixed thoroughly. Titration Procedure A burette was filled with the standard sodium carbonate solution. Using a pipette, a measured volume of hydrochloric acid was transferred into a conical flask. A few drops of methyl orange indicator were added to the hydrochloric acid solution. The burette was then slowly titrated with the sodium carbonate
- Na2O4 - Büchner funnel - beakers - sodium carbonate Procedure The benzioc acid is synthesized by heating benzylalcohol in a round bottomed flask under reflux. In addition to that, we use Na2O4 as a oxidizing agent. After that, we use HCl to precipitate it. After the some time, we filter it through a Büchner funnel before it is recrystallized and filtered again. The mass was recorded as it was dry. By adding sodium carbonate, we will now test whether what obtained is benzoic
of sodium drops into water, gas comes out, and causes a “pop” sound, that is a chemical change because gas has been formed when sodium dropped in the water. Hypothesis ========== Hypothesis for the experiment: After I conduct this experiment, I expect and suppose I can recognize and physical changes, identifying the difference these two kinds of changes. Also, I will be able to know some physical and chemical properties of copper (II) sulfate, water, iron, sodium carbonate, hydrochloric
using ice. (I didn’t investigate the 80 degrees temperature). Fair test: Below is a list of things that were kept the same throughout the investigation: Volumes of lipase and milk (by using syringes); volumes of phenolphthalein and sodium carbonate (using pipettes); (best volumes from the preliminary work were used). Each temperature was repeated three times to get a good average. The milk and lipase were equilibrated to the right temperatures before the lipase was added to the milk
as a useful by-product. I shall be carrying out a titration between sodium carbonate, a weak alkali, and sulphuric acid, a strong acid, to calculate the concentration of the sulphuric acid. The sodium carbonate sample I shall be using is a solid. Solids cannot be titrated successfully, so I will turn it into a solution by adding distilled water to it. The distilled water has no adverse effects on the sodium carbonate. [IMAGE]Na2CO3(aq) + H2SO4(aq) Na2SO4(aq) + H2O(l) + CO2(g) Methyl
Introduction: A balanced chemical equation has reactants and product that has to represent a formulae. The amount of each element, number needs to be the same on either side of the equation. (E.g., HCl(aq)+NaHCO3(s) reacts to produce NaCl(aq)+H2O(I)+CO2(g)). This helps us view the study of the Law of Conservation of Mass, and how it works in this equation. The calculation for formula, mass helps us to determine if you need to convert grams to a particular substance to moles, from a product. Moles
Assessed Practical Titration Write-Up Equation: Na2CO3 + H2SO4 à Na2SO4 + CO2 + H2O One mol of Na2CO3 reacts with one mol of H2SO4. Results: The weight of my sodium carbonate crystals was 2.67g and the results of the titrations are as follows: Rough 1st 2nd 3rd 4th 5th 6th Initial Reading 00.00 00.50 00.00 00.00 00.00 00.00 00.20 Final Reading 26.45 26.45 26.05 27.00 25.85 25.90 26.10 Titration 26.45 25
the world due to its effective business and H.R. management performance. The story of Solvay starts in 1861, in Belgium. During this year the Ernest brothers started working on a new revolutionary ammonia-soda process for the production of sodium carbonate. Later on in 1863 the Solvay Group was founded. During the first years they had constant economic problems. Because of the problems that they had trying to developed and perfect the production process of their products, their performance during
because the more amount of sugar it contains the more it will reduce the Copper. It will be a much darker precipitate compared to the other two. Background theory: Benedict's solution is an aqueous solution of Copper (II) Sulphate, Sodium carbonate and Sodium citrate. It is an alkaline solution used to test for the presence of aldehyde groups (RCHO). The reducing sugar (Glucose) reduces the copper (II) Sulphate to Copper (I) oxide. The colour of the precipitate varies dependent on the strength
An Investigation into the Effect of Light Intensity on the Rate of Photosynthesis on a Piece of Elodea Plan: Method: 1) First I will put some water into a boiling tube and add 5 spatulas of Sodium Hydrogen Carbonate. I will add 5 spatulas of Sodium Hydrogen Carbonate as it reacts with water and forms carbon dioxide; also I have so much so that I have carbon dioxide in excess. 2) Then I will cut off 5cm of elodea and place it into the boiling tube. 3) Thirdly I will place the boiling
Mummification has had a role in embalming since A.D. 600. What is mummification and why was it done? Mummification is linked with Anubis, the God of mummification. After Egyptians assumed that the body had to be preserved in order for the soul to be identified following death. Anubis, who is shown as a jackal, is credited with embalming. The hearts of the deceased were weighted to value their worth in the underworld. The reason for mummification was to rid the moisture and preserve the body. Mainly
Conical Flask · Balance · Spatula · Weighing bottle · Glass rod Method Making a standard solution: A weighing bottle was accurately weighed and approximately 5g of anhydrous sodium carbonate was added and the weight of the bottle plus the solid recorded. The anhydrous sodium carbonate was then transferred into a 100cm3 clean beaker. The bottle was carefully rinsed out two or three times with water and the washings were transferred to the beaker each time. About 25cm3 of water
in Pond Weed Aim: The aim of this experiment is to find out what effects the amount of photosynthesis happening in a pond weed. Introduction: A piece of pondweed will be cut and placed into a test tube containing water and sodium hydrogen carbonate, which is placed inside a beaker containing water. A lamp will be shined on to the pondweed and the amount of bubbles released from the plant will be counted. The lamp will be adjusted to different distances from the plant to try and
which is a company that deals with chemicals, pharmaceuticals, and plastics. The Solvay group originally began in 1861, by a Belgian chemist Ernest Solvay. At that time he was experimenting and invented an ammonia-soda process for producing sodium carbonate, or otherwise called soda ash. After successfully inventing this process, he founded the Solvay group in 1863 to exploit this process. The case further talks about the newly assigned HR manager Marcel Lorent who has to manage a new group called
Alka-Seltzer Rockets Instructor: Mr. Thompson Due 4/1/16 Science Research Jamal Matthews Jeremy Alpert Sophia Tannenbaum Abstract Alka-Seltzer® is a tablet that can be taken to relieve stomach pain from indigestion. Our experiment was designed to test the hypothesis that if the amount of Alka-Seltzer® increased, then the time it would take for the cap to pop off the film canister would decrease. In our experiment, we changed
am going to record the rate of photosynthesis on 10 different distances, three times each.to ensure the results are accurate. For this experiment I am going to need; -A lamp -About 4cm of pond-weed (Elodea) -A paperclip -Sodium Hydrogen Carbonate -A metre rule -A stopwatch -A thermometer -A test tube I can't think of any major risks in this experiment just make sure not to break the thermometer because it contains mercury, which is poisonous. -First of all plug
errors. Through the titration of hydrochloric acid with standard anhydrous sodium carbonate the accuracy of the equipment was tested to discover the difference in concentration over the five trials conducted. Method: The method that was given in the Chemistry 306 Laboratory was followed from page 14 – 16. The standard of hydrochloric acid was made to a concentration of (0.1008 ± 0.0020) mol L-1. The amount of sodium carbonate in the conical flask from A-E was 0.113 g, 0.195 g, 0.1368 g, 0.1872 g and