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mass
amount
molar mass
concentration
solution volume
gas volume
molar gas volume
Avogadro
constant, L
number of
entities, N
M3.5 STOICHIOMETRY BRIDGE FOR REACTING GAS VOLUMES
The mathematical operations required to solve gas-volume – gas-volume stoichiometry problems successfully are conveniently depicted using a STOICHIOMETRY BRIDGE.
DEPICTS REACTANT GAS-VOLUME INPUT & PRODUCT GAS-VOLUME OUTPUT
N.B. This picture may need adjusting slightly where the volume of one gaseous reactant needed to be equated with another, e.g., with the combustion of a gas in oxygen. Here, a pair of inputs, one whose value is known, is related to the other by the reaction stoichiometry.
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