# Reagent

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The maximum amount of product that can be determined from an experiment is called the limiting reagent, this is because this reagent runs out first. In our lab the amount of Cu3(PO4)2 was determined from the amount of CuCl2 in the reaction. When CuCl2 ran out no more Cu3(PO4)2 could be produced. The theoretical Yield is found by calculating the maximum amount of product the limiting reagent can produce. The theoretical yield in our experiment was .304 grams, we calculated this value using stoichiometry from the the following equation:2 Na3PO4 + 3 CuCl2 → Cu3(PO4)2 + 6 NaCl .Since we preformed this experiment in a lab and the conditions were not perfect it was impossible to obtain the correct theoretical yield, that we expect when we combine the two reagents. Because of this the weight of the Cu3(PO4)2 that we get in the lab is called the actual…

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The limiting reagent is determined by first using the “weighing by difference” method, which is when one measures a substance by comparing the difference in its mass before and after transferring it to another container. To later collect the copper product produced in the reaction, quantitative transfer was employed to completely remove the copper product from the beaker and into the vacuum filtration apparatus, a technique used to separate different substances through the use of a filter and…

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Amount of CaCl2 = m/M = (0.5g )/( 110.98 g/mol ) = 0.004505316 mols of CaCl2. Amount of CaCO3 = 0.004505316 x 1/1 = 0.004505316 mols of CaCO3. Molar mass of Na2CO3 = 2(22.99 g/mol) + 12.01 g/mol + 3(16.00 g/mol) = 105.99 g/mol. Amount of Na2CO3 = m/M = (0.7g )/( 105.99 g/mol ) = 0.006604396 mols of Na2CO3. Amount of CaCO3 = 0.006604396 x 1/1 = 0.006604396 mols of CaCO3. Thus the Calcium Chloride is the limiting reagent as it produces less Calcium Carbonate. Molar Mass of CaCO3 =…

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The purpose of these calculations is to identify the limiting reagent and calculate the percent yield of the esterification reaction used to produce aspirin. This reaction was catalyzed by concentrated H2SO4, but since it is not consumed during the reaction, it does not affect the stoichiometric calculations. In order to determine the limiting reagent, the moles of reactants were calculated (Part A). Part B of the calculations illustrates the amount of aspirin produced by each reactant based on…

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1. Do supplements that contain a higher protein content have a lower sugar content? 2. Biuret’s Reagent is a chemical indicator that detects protein and turns violet with the occurrence of peptide bonds. Lugol’s reagent is a chemical indicator that detects starch and turns into a black brown color as a result of the formation of polyiodide chains. Benedict’s reagent is a chemical indictor that detects monosaccharides and sugars and the observed change for a positive reaction is precipitation.…

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Aim: Identify positive and negative colors seen from substances contacted with Marquis and Mandelin reagents Introduction: Drug location includes introductory screening of tests for medications and in restorative applications the screening tests results specifically utilized for medicinal assessment. For legitimate purposes, the screening technique takes out all negatives, positive results viewed as possible and require affirmation utilizing corroborative strategies, for example, elite fluid…

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Experiments involving chemical reactions can be performed using simple household ingredients and products such as baking soda and vinegar. When baking soda (sodium hydrogen carbonate) reacts with ethanoic acid which is found in vinegar in a 1:1 ration, the reaction will produce three different products which are water, carbon dioxide and Sodium acetate. The reaction is: NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2 In the experiment, the quantitative relationship between the two reagents which is the…

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ferric system after the quick initial decomposition by the ferrous system. However, in the presence of organics, the ferric system is almost entirely stopped by the higher reaction potential of the radical species with the organics and other hydrogen peroxide molecules. The efficiency of the Fenton Reaction process is also dependent upon catalyst type, pH, temperature, and the characteristics of the organic materials being targeted. The generation of hydroxyl radicals has been studied using…

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An essential ingredient to be utilized in the process is the Alamar Blue Cell Viability Reagent, which is known for its reducing function. The declining ability of a cell is directly proportional to the quantitative measure of its proliferation activity. In the context, determination of the reducing capacity of a given cell will play a critical role in the establishment of its relative cytotoxic activity. The analogy is based on the idea that cells maintain a reducing environment while in their…

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Purpose: The purpose of this lab is to establish a concrete understanding of limiting reagents and percent yields. In addition, the lab should give the administrator the ability to analyze the effects of reactants on the product of a chemical reaction. Procedure: In part A of the lab, the first step in the procedure is to add 20 mL, and 25 mL of CaCl2 to two different flasks. Following this, the administrator is to add 10 mL of Na2CO3 to the flask containing 20 mL of CaCl2, and 5 mL of the…

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