alleryStart learning →What is a stoichiometric factor?
AA ratio of coefficients from a balanced equation
BA ratio of masses of two different products
CA ratio of the densities of two reactants
DA ratio of volumes at a fixed temperature
Answer & Solution
Correct answer: A. A ratio of coefficients from a balanced equation
1. A balanced equation fixes the relative numbers of every species involved.
2. Taking any two of those coefficients as a ratio gives a stoichiometric factor.
3. For N2 + 3H2 giving 2NH3, one such factor is 2 mol NH3 per 3 mol H2.
4. Multiplying a known amount by the right factor converts it to the amount of another species.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 4 "Stoichiometry of Chemical Reactions", section 4.3 Reaction Stoichiometry_
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