Reaction Yield.

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Presentation transcript:

Reaction Yield

Reaction Yield Theoretical Actual The maximum amount of product that can be produced from a given amount of reactant calculated using stoichiometry The amount of product actually produced when the chemical reaction is carried out in an experiment

Percent Yield A comparison of the actual and theoretical yield In general, the higher the yield, the better the results are from the experiment.

Steps Identify what is given in the problem. The product given is the actual yield, calculate the theoretical yield (from LR) Calculate the percent yield

Example 1 Determine the theoretical yield of silver chromate if 0.500 g of silver nitrate is used to react with potassium chromate. If 0.455 g of silver chromate is obtained from an experiment, calculate the percent yield.

Example 2 Carbon tetrachloride was prepared by reacting 100.0 g of carbon disulfide and 100.0 g of chlorine gas. Calculate the theoretical and percent yield if 65.0 g of carbon tetrachloride was obtained from the reaction.