One mole of anhydrous `MgCl_(2)` dissolves in water and librates `25 cal//mol` of heat. `Delta H_("hydration")` of `MgCl_(2)=30 cal//mol`. Heat of dissolution of `MgCl.H_(2)O`

One mole of anahydrous MgCl_(2) dissolves in water and liberates 25 cal // mol. Heat of dissolution of MgCl_(2) . H_(2)O is :

One moles of anhydrous AB dissolves in water and liberates 21.0 J mol^(-1) of heat. The valueof DeltaH^(Theta) (hydration) of AB is -29.4 J mol^(-1) . The heat of dissolution of hydrated salt AB.2H_(2)O(s) is

One moles of anhydrous AB dissolves in water and liberates 21.0 J mol^(-1) of heat. The valueof DeltaH^(Theta) (hydration) of AB is -29.4 J mol^(-1) . The heat of dissolution of hydrated salt AB.2H_(2)O(s) is

One mole of anhydrous salt AB dissolves in water and liberates 15 J mol^(-1) of heat .The value of Delta H_(hydration)^° of AB is -20.05 J mol^(-1) .Hence the enthalpy of dissolution of hydrated salt AB.3H_2O(s) is

Anhydrous MgCl_(2) can be prepared by :

Anhydrous MgCl_(2) is obatined by heating hydrate salt with _____.

Anhydrous MgCl_(2) is obatined by heating hydrate salt with _____.

Pure anhydrous MgCl_(2) can be prepared from the hydrated salt by