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September 1, 2015

Homework Help: Chemistry

Posted by Robert on Tuesday, July 12, 2011 at 7:41pm.

Ethanol, C2H5OH or C2H6O, is mixed with gasoline and sold as gasohol. Given the following thermo-chemical reaction, calculate the kilograms (kg) of CO2 produced when enough ethanol is combusted to provide (or give off) 369 kJ of heat:

C2H5OH (l) + 3 O2 (g) --> 2 CO2 (g) +3 H2O (l);
delta-H rxn = -1235 kJ

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