Practice: Using Calorimetry Measurements

The enthalpy change when calcium chloride (CaCl)2 dissolves in water is 82.9 kJ/mol. The heat capacity of the solution is approximately equal to that of water (𝑐=4.18/)JgK. If 90 g of CaCl2 dissolves in 5.0 L of water at 20C, what is the temperature of the resulting solution?


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