Stoichiometry Calculator
Use this stoichiometry calculator to work through quantities in a chemical reaction. Enter balanced equation, known amount and the requested substance and review moles or mass for the selected substance.
Assumes the reactant is fully consumed and is not the limiting factor between multiple reactants.
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How it works
moles product = moles reactant × (coefficient product ÷ coefficient reactant); mass = moles × molar massHow to use the Stoichiometry Calculator
Start by entering balanced equation, known amount and the requested substance. Keep the units consistent and check that each value belongs to the same question.
The result gives moles or mass for the selected substance. The equation must be balanced before using the ratios. Use it as a guide and check any instructions, rules or professional advice that apply.