Chemistry: Percent Yield and Stoichiometry

These flashcards cover key concepts related to percent yield and stoichiometry from the chemistry lecture.

Theoretical Yield

The amount of product formed from the complete conversion of a given amount of reactant to product.

Actual Yield

The amount of product obtained in an experiment.

Percent Yield

Actual yield expressed as a percentage of the theoretical yield.

Percent Yield Formula

% Yield = (Actual Yield / Theoretical Yield) x 100%.

Theoretical vs. Actual Yields

Theoretical yield is calculated and larger, while actual yield is measured and smaller.

Complete Reaction of C3H8

C3H8 + 5 O2 → 3 CO2 + 4 H2O reflects the combustion of propane.

Example of Percent Yield Calculation

If the actual yield is 45.2 g of CO2 and the theoretical yield is 57.3 g of CO2, the percent yield is 78.9%.

Percent Yield Calculation Steps

1. Determine actual and theoretical yields. 2. Apply the percent yield formula.