When 0.517 g of compound X is burned completely in a bomb calorimeter containing 3000 g of water, a temperature rise of 0.229oC is observed. What is ΔU rxn for the combustion of compound X? The hardware component of the calorimeter has a head capacity of 3.47kJ/oC. The specific heat of water is 4.184 J/g-oC, and the MW of X is 56.0 g/mol. Answer in units of kJ/mol.
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