The solubility of Ba(OH)(2)8H(2)O in wat...

The solubility of `Ba(OH)_(2)8H_(2)O` in water at 298 K is 5.6 g per 100 g of water. What is the molality of the hydroxide ions in a saturatd solution of barium hydroxide at 298 K ? (Atomic mass of Ba =137, O=16)

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The correct Answer is:

0.356 m

Molality of `OH^(-)` ions `=2xx"molality of Ba(OH)"_(2)`.

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