Calculate the enthalpy of solution in kilojoules per mole of solute Separation of solute: 13.5 kj/mol Separation

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Question:

Calculate the enthalpy of solution in kilojoules per mole of solute

Separation of solute: 13.5 kj/mol
Separation of solvent: 19.8 kj/mol
Formation of solute-solvent interactions: -88.8 kj/mol solute

(-88.8) - (13.5 + 19.8)
(-88.8) - (33.3)
= - 122 kJ/mol