A 1.985-g sample of leucine, C6H13NO2 (131.18 g/mol) was burned in a bomb calorimeter with excess oxygen. The temperature of the calorimeter and the water before combustion was 16.99 °C; after combustion the calorimeter and the water had a temperature of 25.00 °C. The calorimeter had a heat capacity of 868 J/K, and contained 1.401 kg of water. Use these data to calculate the molar heat of combustion (in kJ) of leucine.

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