2:45 minutes
Problem 94
Textbook Question

The heat of combustion of ethanol, C2H5OH(l), is -1367 kJ>mol. A bottle of stout (dark beer) contains up to 6.0% ethanol by mass. Assuming the density of the beer to be 1.0 g>mL, what is the caloric content due to the alcohol (ethanol) in a bottle of beer (500 mL)?

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