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April 19, 2015

Homework Help: science

Posted by alex on Wednesday, December 15, 2010 at 2:37am.

2H2(g) + O2(g) = 2H2O (l)
Calculate the volume of Hydrogen gas at STP required to produce an amount of energy equivalent to that produced by the combustion of a gallon of octane. The density of octane is 2.66 kg/gal, and its standard enthalpy of formation is -249.9 kJ/mol.
HELPPP!!

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