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Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8C10H8). When 1.147 g of naphthalene burns in a bomb calorimeter, the temperature rises from 26.931 C

Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8C10H8). When 1.147 g of naphthalene burns in a bomb calorimeter, the temperature rises from 26.931 C to 31.259 C.

Find rH for the combustion of naphthalene at 298 K.

Express your answer using four significant figures.

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