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The enthaply of combustion of lactose, C12H22O11, is 5652 kJ/mol. A 2.50 g sample of lactose was burned in a calorimeter that contained 1350 g of water. The heat capactiy of the calorimeter is 1630 J/degrees celsius, and the inital temperature was 24.58 degrees celsius. What was the final temperature in degrees celsius?

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