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In a constant-pressure calorimeter of negligible heat capacity, 25 mL of 1.00 M CaCl2 is mixed...

In a constant-pressure calorimeter of negligible heat capacity, 25 mL of 1.00 M CaCl2 is mixed with 25 mL of 2.00 M KF, resulting in solid CaF2 precipitating out of the solution. During this process, the temperature of the water rises from 25.0°C to 26.7°C. Assume the specific heat capacity of the solution is 4.184 J/°C•g and the density of the solution is 1.00 g/mL. Calculate the enthalpy of precipitation in kJ per mole of CaF2 precipitated.

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