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The crystal lattice energy of KF is 790 kJ/mol. the enthalpy of hydration of K^+ is -350 kJ/mol and the enthalpy of hydration of F is -460 kJ/mol, which creates an overall heat of hydration for the salt of -810 kJ/mole. What is the enthalpy of solution for KF? a) -20 kJ/mol b) -810 kJ/mol c) +330 kJ/mol d) +440 kJ/mol