Chemistry Practice Problems Lattice Energy Application Practice Problems Solution: The lattice energy* of NaI is -686 kJ/mol, and the...

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Solution: The lattice energy* of NaI is -686 kJ/mol, and the enthalpy of hydration is -694 kJ/mol. Calculate the enthalpy of solution per mole of solid NaI. Describe the process to which this enthalpy change applies.*Lattice energy was defined in Chapter 3 as the energy change for the process M+(g) + X-(g) → MX(s).

Problem

The lattice energy* of NaI is -686 kJ/mol, and the enthalpy of hydration is -694 kJ/mol. Calculate the enthalpy of solution per mole of solid NaI. Describe the process to which this enthalpy change applies.

*Lattice energy was defined in Chapter 3 as the energy change for the process M+(g) + X-(g) → MX(s).