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A chemical engineer studying the properties of fuels placed 1.860 g of a hydrocarbon in the bomb of a calorimeter and filled it with O2 gas. The bomb was immersed in 2.550 L of water and the reaction initiated. The water temperature rose from 20.00 degrees C to 23.55 degrees C. If the calorimeter (excluding the water) had a heat capacity of 403 J/K, what was the heat of reaction for combustion (qv) per gram of the fuel? (d for water = 1.00 g/mL; c for water = 4.184 J/g. degrees C.) Enter your answer in scientific notation.