Chemistry 2

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I have to calculate the Ccal using the following info:
Initial Temp of water outside calorimeter=22.6 C
Initial Temp of water inside the calorimeter= 100 C
Volume of water in calorimeter= 50mL
Volume of water outside calorimeter= 300mL
Final Temp of water in calorimeter=27.9 C
Final Temp of water outside calorimeter= 27.9 C

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