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Calculating the Percent Yield of Alum

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❶The chemical equation for the reaction is: Find the Limiting Reagent.

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% Yield from Experiments

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Calculating the Percent Yield of Alum. Last Update: April 25, To determine the percent yield of a product in a chemical reaction we need to know the amount of all reactants used, the amount of the product formed and the balanced chemical reaction.

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Jun 14,  · Lastly, multiply your theoretical number of moles of alum by alum's molecular weight. mol X g/mol = g of alum. This is your theoretical yield. Your percent yield (if asked for) is your actual yield divided by your theoretical yield multiplied by %.Status: Resolved.

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per cent yield: quantity of product actually recovered expressed as a percentage of the theoretical yield Background The formula of alum is KAl(SO 4) 2. 12H 2 O. Sep 25,  · Find the percent yield of alum In an experiment to synthesize alum I started with g of aluminum and made g of alum 2. Relevant equations 2Al + 6H20 + 2KOH > 2KAl(OH)4 + 3H2 3. The attempt at a solution First I find the LR. Which in this expirment is Al.

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Formula of a Hydrate: The purpose of this experiment is to determine the formula for the hydrate alum. Synthesis of a Hydrate: The purpose of this experiment is to become familiar with the formation of hydrates and using sequential reactions. In order to determine % yield in an experiment, one must first determine the theoretical yield. Theoretical yields are based upon the stoichiometry of the reaction. In the above reaction, we see the following mole ratios for the chemical substances involved.