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A 1.103 g sample of a gaseous compound that occupies a volume of 582 mL at 765.5 Torr and 25.00 ?C is burned in an excess of O2(g) in a bomb calorimeter. The products of the combustion are 2.108 g CO2(g), 1.294 g H2O(l), and enough heat to raise the temperature of the calorimeter assembly from 25.00 to 31.94 ?C. The heat capacity of the calorimeter is 5.015 kJ/?C. Write an equation for the combustion reaction, and calculate ?H? in kJ/mol for this reaction at 25.00 ?C.