Problem: Consider the dissolution of CaCl2:CaCl2 (s) → Ca2+(aq) + 2 Cl- (aq)          ΔH = -81.5 kJ An 11.0-g sample of CaCl2 is dissolved in 125 g water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat loss to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C•g.

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Consider the dissolution of CaCl2:

CaCl2 (s) → Ca2+(aq) + 2 Cl(aq)          ΔH = -81.5 kJ 

An 11.0-g sample of CaCl2 is dissolved in 125 g water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat loss to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C•g.

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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.