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25. One mole of anhydrous MgCl2 dissolves in water and liberate 25 cal/mol of heat.Enthalpy of hydration of MgCl2 = -30 cal|/mol.Heat of dissolution of MgCl2.7H2O (s) (A)+5 cal/mol (B)-5cal/mol (C)55 cal/mol (D)-55 cal/mol |
| Answer» 25. One mole of anhydrous MgCl2 dissolves in water and liberate 25 cal/mol of heat.Enthalpy of hydration of MgCl2 = -30 cal|/mol.Heat of dissolution of MgCl2.7H2O (s) (A)+5 cal/mol (B)-5cal/mol (C)55 cal/mol (D)-55 cal/mol | |