Percentage yield (Edexcel GCSE Chemistry): Flashcards

Percentage yield compares actual yield to theoretical (maximum possible) yield

Amount of product actually obtained from a reaction

Maximum amount of product that could be obtained

Reversible reactions don't complete, product loss during separation, or unexpected reactions occur

They don't go all the way to completion

Product lost during separation from reaction mixture

Reactants reacting with oxygen in air instead

$\frac{\text{Actual Yield}}{\text{Theoretical Yield}} \times 100$

73.5%

73.5% of reactants successfully converted to product