Limiting Reactant & Excess Reagent Stoichiometry Calculator
Identify the limiting reagent that halts the reaction, compute maximum theoretical yield moles, and determine the exact unreacted mass of excess reagent remaining.
Max Reaction Extent
Calculator Inputs
Max Reaction Extent
Unreacted Excess Mass Remaining
Initial Moles of Reactant A
Initial Moles of Reactant B
Ratio A (mol/coeff)
Ratio B (mol/coeff)
Reactant A is the Limiting Reagent: It will be completely consumed first, leaving unreacted excess of Reactant B.
Reactant Consumption Ratios
Standard stoichiometry and reaction engineering tool for chemical synthesis optimization.
Calculation Methodology
Limiting Reactant = min( Moles_A / Coeff_A, Moles_B / Coeff_B ). Excess reactant remaining is calculated from stoichiometric consumption by the limiting reactant.
Frequently Asked Questions
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