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April 17, 2014

Homework Help: AP Chemistry

Posted by Jacob on Monday, February 15, 2010 at 3:01pm.

The heat of reaction for burning 1 mole of a certain compound X is known to be -477.7 kJ. The calorimeter constant of the bomb being used is 2500 j/degree celsius and the initial temperature of the water is 23.2 degrees celsius.

a) if 22.54 g of compound X (MM=46.0) is burned in the bomb calorimeter containing 2000. ml of water (S.H.=4.184 j/g(degrees celsius), what will be the final temperature?

b) How much water can be warmed from 23.2 C to 56.5 C when 52.3 g of the compound is burned in the bomb?

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