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Answer to Question #321075 in General Chemistry for zzz
Question #321075
What is the mass of ethanol that must be combusted to generate 20.4 L of CO2 at STP?
Expert's answer
C2H5OH + 3O2 → 2CO2 + 3H2O
20.4L = 20.4kg= 20400g
Moles of CO2 produced= 20400/44= 463.6
Moles of ethanol that burn= 463.6/2= 231.8
Mass of ethanol= 231.8× 46= 10663.64g
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