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Stoichiometry & Reaction Yield

Calculate theoretical yield, actual yield and percent yield from a chemical reaction.

Dr. Lena FischerVerified

PhD Chemistry (Analytical), MRSC

Analytical chemist with 12 years in pharmaceutical QA, spectroscopy, and solution chemistry. Passionate about making chemistry accessible.

Mass of limiting reactant (g)

Molar mass of reactant (g/mol)

Molar mass of product (g/mol)

Mole ratio (reactant : product)

Actual yield obtained (g)

Enter values above to see your result

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Stoichiometry uses mole ratios from a balanced equation to calculate how much product can be formed from a given amount of reactant.

Percent yield compares actual to theoretical yield, reflecting real-world losses from side reactions, transfer losses and equilibrium.

\% \text{ yield} = \frac{\text{actual yield}}{\text{theoretical yield}} \times 100

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