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The lattice energy of NaCl is -786 kJ/mol, and the enthalpy of hydration of one mole...

The lattice energy of NaCl is -786 kJ/mol, and the enthalpy of hydration of one mole of gaseous Na+ and one mole of gaseous Cl- ions is -783 kJ/mol. Calculate the enthalpy of solution per mole of solid NaCl.

____ kJ/mol NaCl

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