noun
stoichiometry
Technical term in chemistry referring to the calculation of quantitative relationships of reactants and products in chemical reactions.
化学量論に基づいて、反応に必要な試薬の量を計算した。
Based on stoichiometry, we calculated the amount of reagents needed for the reaction.
Compound of 化学 (chemistry) and 量論 (quantitative theory), likely a calque from Western scientific terminology.