Problem Answer

This combustion of butane will produce 943 kilocalories of heat.


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Calculate Stoichiometry Expression

Calculating with a Heat of Reaction


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Problem


The following balanced thermochemical chemical equation represents the combustion of butane (C4H10):


2 C4H10 + 13 O2 ---> 8 CO2 + 10 H2O     Q = -1380 kcal


In this equation, all substances are at standard state conditions. According to this balanced chemical equation, how many kilocalories of heat would be produced by the combustion of 79.3 grams of butane? 

Atomic Masses: C=12.0 H=1.00 O=16.0 amu

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