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April 26, 2015

Homework Help: Chemistry

Posted by Abby on Thursday, June 21, 2012 at 6:56pm.

In the following experiment, a coffee-cup calorimeter containing 100. mL of H2O is used. The initial temperature of the calorimeter is 23.0 degrees C. If 3.80 g of CaCl2 is added to the calorimeter, what will be the final temperature of the solution in the calorimeter? The heat of solution, Delta H, of CaCl_2 is -82.8 kJ/mol.

I found the answer -14.6 degrees C and it was not correct. I am not quite sure where my math went wrong.

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