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4. A sample of ethanol, C2H5OH, weighing 2.84 g was burned in excess oxygen in a bomb calorimeter. The temperature of the calorimeter rose from 25.00 oC to 33.73 oC. If the heat capacity of the calorimeter and contents was 9.63 kJ/ oC, how much heat is evolved from burning 1 mol of ethanol at constant volume (Erxn) and 25 oC.