Answer:
142.2 mol H2O
Step-by-step explanation:
The chemical reaction is
4H2 + CO2 ---> CH4 + 2H2O
71.1 mol CO2 × (2 mol H2O / 1 mol CO2)
= 142.2 mol CO2
71.1 mol CO2 ( 1 mol CH4 / 1 mol CO2 ) = 71.1 mol CH4 produced
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