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The combustion of 1.75 g of benzoic acid (M = 122.1 g mol-1 ) in a...

The combustion of 1.75 g of benzoic acid (M = 122.1 g mol-1 ) in a bomb calorimeter at 298 K caused a temperature rise of 4.558 K, while combustion of 0.805 g ethyl acetate (M = 88.1 g mol-1 ) caused a temperature rise of 2.030 K. Calculate the internal energy change of combustion for 1 mole of ethyl acetate. The enthalpy of combustion for benzoic acid is -3251 kJ mol-1 . (Calculate the heat capacity of the bomb calorimeter first.)

A detailed guided explanation would be greatly appreciated. Thanks!

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