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ChemistryGeneral Chemistry

How to Find Actual Yield from Percent Yield and Theoretical Yield

Rearranging the percent-yield formula gives actual yield = 0.8840 × 19.98 g = 17.66232 g, which rounds to 17.66 g at four significant figures.

Question

A chemical reaction has a theoretical yield of 19.98 g19.98\,\mathrm g and a percent yield of 88.40%88.40\%. What is the actual yield?

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Evidence boundary

The calculation treats 88.40% as the decimal factor 0.8840 and requires actual and theoretical yield to use the same unit. This is an actual yield inferred from the reported efficiency, not a new laboratory measurement. The prompt does not provide enough information to identify why the yield is below 100%.