Concept explainers
Dissolving 6.00 g CaCl2 in 300 mL of water causes the temperature of the solution to increase by 3.43 °C. Assume that the specific heat of the solution is 4.18 J/g · K and its mass is 306 g.
- (a) Calculate the enthalpy change when the CaCl2 dissolves. Is the process exothermic or endothermic?
- (b) Determine ΔH on a molar basis for
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Chemistry: Principles and Practice
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