Chemistry
Intermediate

Percent Yield

Efficiency of a chemical reaction.

Formula

%=actualtheoretical×100\% = \frac{\text{actual}}{\text{theoretical}} \times 100

Variables

actualMeasured product
theoreticalPredicted product

Example

Getting 8 g when 10 g was expected is an 80% yield.

Did You Know?

Real chemical reactions rarely hit 100% yield — side reactions and losses always take a cut.

stoichiometryyield