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The enthalpies of solution of anhydrous ...

The enthalpies of solution of anhydrous `CuSO_(4)` and hydrated `CuSO_(4). 5H_(2)O` are -66.5 and 11.7 kJ `mol^(-1)` respectively.Calculate the enthalpy of hydration of `CuSO_(4)` to `CuSO_(4).5H_(2)O`.

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`-78.9 kJ mol^(-1) , i.e., ( -66.5- 11.7 ) kJ mol^(-1)`
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The heat of solution of anhydrous CuSO_(4) and CuSO_(4).5H_(2)O are -15.89 and 2.80 Kcal mol^(-1) respectively. What will be the heat of hydration of anhydrous CuSO_(4) ?

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