The purpose of this was to determine the concentration of sodium carbonate in an unknown sample by titration. The solution of hydrochloric acid was prepared and standardized using Na2CO3. Observations: Week 1: Standardizing hydrochloric acid using sodium carbonate with bromocresol green indicator Table 1: Titration of sodium carbonate using hydrochloric acid Trial | Mass of Na2CO3 (g) | Burette Reading (mL) | Final Volume of HCl (mL) | | | Initial | Final | | 1 | 0.2123
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salts of carbonic acid 4/2/14 A summary of the concepts: The purpose of this lab is to better understand “stoichiometry”. We will be reacting sodium carbonate (NaHCO)3 and sodium carbonate (Na2CO3) with hydrochloric acid to produce sodium chloride‚ water‚ and carbon dioxide. The balanced chemical reaction looks like this: NaHCO3 + HCl = NaCl + H2O + CO2 CAUTION: Be especially careful when handling the 6M HCl (aq)‚ as it can cause chemical burns to the skin. If any acid spills on you‚ rinse
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Experiment 2 Preparation of Primary Standard solutions and Standardizing Acid and Base solutions Objectives: The objective of this experiment is: 1- To prepare two primary standard solutions‚ KHP and Na2CO3 2- To standardize a sodium hydroxide solution using the prepared primary standard KHP. 3- To standardize a hydrochloric acid solution using the prepared primary standard Na2CO3. 4- To calculate the concentration of an unknown acid or base. Introduction A primary standard is a standard that is accurate
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Acid-Base Titrations: Analysis of Antacid Tablets Cuenca‚ Carlo Nicolo B. Del Prado‚ Rockson D. MEB21 Bachelor of Science in Biology – Major in Medical Biology College of Science De La Salle University – Dasmariñas Dasmariñas‚ Cavite Philippines ABSTRACT This experiment was performed to learn the technique of acid-base titration and to compare the efficiency of commercially available antacids by looking at their weight of HCl and weight of antacid values. The analysis of antacid
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Abstract: During the experiment‚ the group were able to perform the following objectives; to compute the heat capacity of a Styrofoam-cup calorimeter‚ and also to compute the heat of neutralization of 1.0 M hydrochloric acid and 1.0 M sodium hydroxide‚ the heat of dilution of concentrated sulfuric acid‚ and the heat of solution of solid ammonium chloride The sixth experiment was named "Calorimetry" wherein it is the measurement of how much heat is gained or released by a system as a chemical reaction
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chemical reactions include the concentration of reactants‚ temperature‚ surface area‚ the physical state of reactants‚ and a catalyst. This experiment regarding the factors that affect reaction rate tests the effects of increased concentration and temperature of the hydrochloric acid solution (HCl) and also the effect of increased surface area of magnesium metal (Mg). When glow sticks are immersed in a hot water bath‚ it is proven that they glow with greater intensity. This proves that an increased temperature has an effect
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Magnesia 0.2 Hydrochloric Acid (HCL) Phenolphthalein ( C2OH4O4 ) AIMS The aim of this titration was to calculate the amount of Magnesium Hydroxide (Mg OH 2) in a 5ml teaspoon of milk of magnesia and compare the result with the manufactures stated value which is 415g per 5ml suspension PROCEDURE The equipment was rinsed out in water 25ml of milk of magnesia was diluted into; 250ml of water Hydrochloric acid ( HCL ) was made up in a flask to 0.2 molar solution
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Acid Attack 4 women in their early 20s were attacked by a 41 year old mentally unstable woman. On September 18‚ 2017 there was an acid attack at the train station in Marseilles. ( Which is in southern France). The women that were attacked by acid are Courtney Siverling‚ Charlotte Kaufman‚ Kelsey Kosten‚ and Michelle Krug. The kind of acid that was used was hydrochloric acid. The hydrochloric acid was brought in a DIY store and was sprayed form a spray canister. They were attacked by a mentally
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This experiment is to show how much carbon dioxide is produced during the reaction between an acid (hydrochloric acid) and marble. Equipment: Hydrochloric Acid (20ml) - 0.5M‚ 1M‚ 2M Marble Chips (2g per test) Large Measuring Cylinder Plastic Bowl (3/4 full of water) Rubber Tubing Glass Conical Flask Stopwatch Method The first thing that we did was fill the plastic bowl with water. We only filled it up 3/4 of the way because otherwise the water displaced into
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an ice water bath for 15 minutes. The p-acetamidobenzenesulfonamide was collected on a Buchner funnel and the flask was rinsed with about 10 mL of ice water. The sold was then transferred to a 25 mL round bottom flask and 5.3 mL of dilute hydrochloric acid was added along with a boiling stone. A reflux condenser was attached to the flask and the mixture was heated using a heating mantle until the solid had dissolved. The solution was then refluxed for an additional 5 minutes. Next‚ the mixture
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