Stoichiometry

noun

1. Calculation of the quantities of reactants and products in a chemical reaction.
2. The quantitative relationship between reactants and products in a chemical reaction.
3. The art or process of calculating the atomic proportions, combining weights, and other numerical relations of chemical elements and their compounds.
4. The study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).
5. The quantitative relationship between the reactants and products of a specific reaction or equation.