Temperature of the solution

When 50.0 mL of 0.400 M Ca(NO3)2 is added to 50.0 mL of 0.800 M NaF, CaF2 precipitates, as shown in the net ionic equation below. The initial temperature of both solutions is 25.00°C.

Assuming that the reaction goes to completion, and that the resulting solution has a mass of 100.00 g and a speci?c heat of 4.18 J/(g · °C,) calculate the ?nal temperature of the solution. Ca2+(aq) + 2 F-(aq) ? CaF2(s) ?H° = -11.5 kJ

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