PPT Slide

Concept 10. The causes of lower-than-expected yields and the distinction between theoretical and actual yields

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• Ideally 100% of the limiting reactant becomes product.

• This is the theoretical yield, amount of product indicated by the  stoichiometrically equivalent molar ratio in balanced equation.

• The theoretical yield is rarely obtained due to several factors.

• The amount of product actually obtained is the actual yield.

• The percent yield (% yield) is the actual yield expressed as a  percent of the theoretical yield:

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