Limiting Reactant Calculator – Find Your Reaction’s Limiting Agent

This limiting reactant calculator helps you determine the reactant that will be used up first in a chemical reaction, simplifying your stoichiometry calculations.

How It Works:

The limiting reactant calculator determines which reactant in a chemical reaction will be consumed first and thus limit the amount of product that can be formed. It uses the masses and molar masses of the reactants, as well as the coefficients from the balanced chemical equation, to calculate the amount of moles of each reactant. The reactant that yields the fewer moles per its coefficient in the equation is the limiting reactant.

How to Use It:

  1. Enter the mass and molar mass of the first reactant.
  2. Enter the mass and molar mass of the second reactant.
  3. Input the coefficients of each reactant from the balanced chemical equation.
  4. Press the “Calculate” button to see the result.

Limitations:

This calculator assumes that all reactants are pure, and the reaction goes to completion. It also does not account for possible side reactions or the formation of intermediate compounds. For complex reactions, additional analyses may be necessary.