Limiting Reagent & Theoretical Yield

Find the limiting reagent, theoretical yield and leftover excess reactant for a reaction A + B → product, free online.

Mass of reactant A (g)

Molar mass of A (g/mol)

Coefficient of A

Mass of reactant B (g)

Molar mass of B (g/mol)

Coefficient of B

Molar mass of product (g/mol)

Coefficient of product

À propos de cette calculatrice

Divide the moles of each reactant by its coefficient in the balanced equation; the smaller value is the limiting reagent. The theoretical yield follows from the limiting reagent's moles, the product coefficient and its molar mass.