Science
Percent yield.
Definition
Percent yield measures the efficiency of a chemical reaction by comparing the actual yield (what you obtained) to the theoretical yield (the maximum possible based on stoichiometry). Reactions rarely achieve 100% yield due to side reactions, incomplete reactions, or loss during purification.
Examples
Real-world.
- 1 A reaction with a theoretical yield of 10 g producing only 8 g gives 80% yield
- 2 Pharmaceutical synthesis aiming for high percent yield to reduce waste
- 3 Industrial Haber process optimizing conditions to maximize ammonia yield
Key Fact
% Yield = (actual yield / theoretical yield) × 100%.