Limiting Reagent Calculator

Determine the Limiting and Excess Reagents

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Limiting Reagent Calculator

Calculate the limiting reagent and excess amounts in a chemical reaction.

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Understanding Limiting Reagents

What is a Limiting Reagent?

The limiting reagent is the reactant that is completely consumed first in a chemical reaction, thus limiting the amount of product that can be formed.

Limiting reagent determines maximum product yield

Excess reagent = Initial amount - Amount reacted

Applications

Limiting reagent analysis is crucial in:

Industrial processes
Chemical synthesis
Cost optimization
Yield calculations

Calculation Method

Steps to determine limiting reagent:

Balance the equation
Convert to moles
Compare stoichiometric ratios
Calculate excess amounts

Practical Considerations

Important factors:

Balanced equation required
Pure reagents assumed
Complete reaction assumed
Side reactions ignored