Stoichiometry is the study of quantitative relationships between reactants and products in a chemical reaction based on the law of conservation of mass. It can be used to calculate the amounts of substances involved in a reaction using mole ratios from a balanced chemical equation and molar masses. Specifically, stoichiometric calculations can be done between moles, between moles and mass, or between masses.

1. Stoichiometry I didn’t know there would be math in Chemistry class!