1.

The heats of formation of Na_(2)B_(4)O_(7) (s) and Na_(2)B_(4)O_(7).10H_(2)O (s) are -742 and -1460 kcal respectively. Calculate the heat of hydration of Na_(2)B_(4)O_(7) in forming decahydrate.

Answer»


ANSWER :(-718 KCAL)


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