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Calculate the enthalpy of solution of so...

Calculate the enthalpy of solution of sodium chloride. The lattice energy of `NaCl` is `+186 kcal mol^(-1)`. And the solution enthalpies of cations and anions are respectively `-97` and `-85 kcal mol^(-1)`

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`DeltaH_(sol)=DeltaH_(Lat tice)+DeltaH_(Na_((aq.))^(+))+DeltaH_(Cl_((aq.))^(-))`
`=186-97-85=4 kcal mol^(-1)`
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