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Separate Chemistry · Paper 1 · Foundation + Higher

Percentage yield

Key ideas1 of 3

How much product did we collect?

The actual yield is the product obtained. The theoretical yield is the maximum possible from the reactants. Collecting 8 g when 10 g was possible gives a percentage yield of 80%.

Theoretical product mass is 10 grams and actual collected mass is 8 grams. The percentage yield is 80%.

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Practice, downloads and sources

Daily 5 · Exam practice · Revision sheet ↓

Foundation + Higher. Use alongside the shared C1–C5 lessons.

AQA GCSE Chemistry 8462 · 4.3.3–4.3.5. Original teaching notes, questions and diagrams.