Limiting Reagent Calculator

Determine the limiting reagent, excess reagent, and theoretical yield for any chemical reaction.

Reaction Equation *

Enter a descriptive name for the reaction

Reactants

Products

💡 Limiting Reagent: The reactant that is completely consumed first, limiting the amount of product formed.

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Limiting Reagent

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Step-by-Step Solution

Detailed stoichiometric calculations

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Limiting Reagent

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Excess Reagent

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Theoretical Yield

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mol

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Excess Remaining

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mol

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Formula Reference

Stoichiometry calculations

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Limiting Reagent Tips

Understanding limiting reagents

🧪 Chemical Disclaimer: Limiting reagent calculations assume 100% reaction efficiency. Results are for educational purposes. Always use proper lab safety procedures.