# What was its initial temperature ?

A 0.350 L solution is prepared by dissolving 0.598 g of MgCl2 in water. The enthalpy of solution for MgCl2 is ∆H = -81.5 kJ/mol. If the final temperature of the solution is 35 oC, what was its initial temperature? (Assume that the density of solution is 1.00 g/mL, specific heat capacity is 4.18 J/g.K and the solution loses no heat to its surroundings)

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