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Stoichiometry uses balanced chemical equations and conservation of mass to relate amounts of reactants and products.
Stoichiometry is the study of the quantitative relationships between reactants and products in chemical reactions, based on the law of conservation of mass. Because atoms are conserved, a balanced chemical equation provides ratios (from the coefficients) that let you calculate how much product will form from given amounts of reactants, or how much reactant is needed to produce a desired amount of product. Its purpose is to enable conversions between measurable quantities such as grams and moles and to determine reaction outcomes. Stoichiometry supports reaction stoichiometry (molar ratios between substances in a reaction), composition stoichiometry (elemental proportions in compounds), and gas stoichiometry (using ideal-gas assumptions to relate gas amounts, volumes, and pressures). It also helps identify the stoichiometric amount (the optimum ratio where reactants are fully consumed), determine the limiting reagent and theoretical yield, and compute percent yield when actual yield differs from the theoretical value.
Stoichiometry uses balanced chemical equations and conservation of mass to relate amounts of reactants and products.
It converts between grams and moles using molar mass, and uses stoichiometric (molar) ratios from equation coefficients to compute unknown quantities.
Stoichiometry is used to find stoichiometric amounts, the limiting reagent, theoretical yield, and percent yield; it also includes special cases like gas stoichiometry and composition stoichiometry.
The quantitative relationships between reactants and products in chemical reactions, derived from conservation of mass and expressed by balanced-equation ratios.
The number in front of a species in a balanced chemical equation that indicates the relative number of particles involved.
The optimum amount/ratio of a reagent such that, assuming completion, it is fully consumed with no deficiency or excess.
Stoichiometry that describes the quantitative (molar) relationships among reactants and products in a chemical reaction.
Stoichiometry that describes elemental molar proportions within a compound (e.g., whole-number ratios in stoichiometric compounds).
The reactant that is consumed first and therefore limits the maximum amount of product that can form.
The maximum mass of product predicted by stoichiometry when the reaction proceeds to completion with the limiting reagent.
A measure of efficiency defined as (actual yield ÷ theoretical yield) × 100%.
Stoichiometry applied to gas-involving reactions, using ideal-gas relationships to relate gas amounts, volumes, pressures, and temperatures.
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