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April 17, 2014

Homework Help: Chem!!

Posted by Bob on Wednesday, November 2, 2011 at 9:05pm.

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

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