Experiment # 4: Analysis of Soda Ash Experiment # 5: Volumetric Analysis of a Carbonate – Bicarbonate Mixture Submitted by: Eugenio December 2012 Department of Chemical Engineering University of Santo Tomas España‚ Manila Abstract Soda ash is the common name for sodium carbonate (NaCO3)‚ a chemical salt derived from carbonic acid. It is frequently used in manufacturing‚ industry‚ and in domestic chores. Glass production is one of the primary industrial uses for sodium carbonate. It is also
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that has since become of national importance. Baking soda‚ which is a trade name for bicarbonate of soda‚ is now found in practically every kitchen throughout the country and is regarded a necessity by millions of Americans. It was first prepared for commercial distribution by two early New Englanders‚ John Dwight of Massachusetts and his brother-in-law‚ Dr. Austin Church of Connecticut. Today the use of bicarbonate of soda is no longer confined to the kitchen. It is used throughout the house‚ in every
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condition whereby the gastric acid returns in greater concentration after the drug effect has ceased. Moreover‚ this class of antacids is not suitable for all patients owing to its components. For example‚ the usually high concentration of sodium bicarbonate present in these chemical antacids may be inappropriate for patients afflicted with hypertension or kidney failure. Non Absorbable Antacids The non-absorbable antacids though less prone to cause a rebound effect‚ have their fair share of
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WITH SODIUM SALTS OF CARBONIC ACID Introduction In this experiment we are going to get a better understanding of chemical stoichiometry. We are going to be reacting sodium bicarbonate (NaHCO3) and sodium carbonate (Na2CO3) with hydrochloric acid (HCl). To start off the mass of two unknown substances (being the sodium bicarbonate and sodium carbonate) will be taken. We will need to construct balanced equations for both of the reactants with the HCl and use this to guide us to figure out how much HCl
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The next recipe indicates that nigrosene (generically‚ a black dye made from oxidised aniline) was domestically procurable in the 1940s. Note that the above recipe uses potassium carbonate (potash) whereas the following recipe uses potassium bicarbonate‚ which is not potash. Imperial Measures are in brackets.Home-made shoe polish Neutral Colour Shoe Polish To make a neutral-colour‚ home-made shoe polish‚ you would need: Soap flakes 30 g (1 oz) Potassium carbonate 15 g (0.5 oz) (Obtain
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Amanda Ayers 09/07/2013 Title: Observations of Chemical Changes Purpose: To observe some properties of chemical reactions and associate them with everyday household cleaning products. Procedure: In order to complete this experiment‚ I had to set up and organize my lab table. I used my 24-well plate‚ my 96-well plate‚ and the first experiment bag which included all of the necessary chemicals. I also had to gather 3 household cleaning products and a pipet in order to test them as well
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solid sucrose obtained by subtracting form the weight of sample bag and filter paper. 2. Separation of Aspirin Transfer the filtrate form the separation of sucrose to 100ml separating funnel and extract it with two 30ml portions of 5% sodium bicarbonate solution to form sodium acetyl salycilate which
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Version 42-0182-00-03 Abstract: Observations: Exercise 1: Observations of a Chemical Change Data Table 1. Chemical Reactions. Well Chemical #1 (4 drops) Chemical #2 (4 drops) Observations: Chemical Change (Y/N) A1 NaHCO3 Sodium Bicarbonate HCl Hydrochloric Acid A2 NaOCl Sodium Hypochlorite KI Potassium Iodide Observation 1: + Add 2 drops of starch Observation 2: A3 KI Potassium Iodide Pb(NO3)2 Lead Nitrate A4 NaOH Sodium Hydroxide C20H14O4 Phenolphthalein A5 HCl Hydrochloric
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extraction with water. Any remaining acid is removed by extraction with aqueous sodium bicarbonate. The ester is purified by distillation 4.APPARATUS AND REAGENTS: 1. Isopenthyl alcohol(also called isoamyl alcohol or 3-methyl-1- buthanol) 2. Glacial acetic acid 3. Concentrated sulphuric acid 4. Round bottom flask 5. Reflux apparatus 6. Heating mantle 7. Cold water 8. Conical flask 9. Aqueous sodium bicarbonate 10. Red litmus paper 4.APPARATUS AND REAGENTS: 11. Saturated aqueous sodium
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chloride is unstable in water and sodium bicarbonate solution. It is easily hydrolyzed back to the alcohol. In each of the following steps‚ the organic layer should be on top; however‚ you should add a few drops of water to make sure. Wash (swirl and shake) the organic layer with 10 mL of water. Separate the layers and discard the aqueous phase after making certain that the proper layer has been saved. Add a 10-mL portion of 5% aqueous sodium bicarbonate to the separatory funnel. Gently swirl the
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