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A 0.1 molal solution of an acid is 4.5% ...

A 0.1 molal solution of an acid is `4.5%` ionized. Calculate freezing point. (molecular weight of the acid is 300 ). `K_(f)="1.86 K mol"^(-1)"kg".`

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`(-0.199^@C)`
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A 0.2 molal aqueous solution of a weak acid HX is 20% ionized. The freezing point of the solution is (k_(f) = 1.86 K kg "mole"^(-1) for water):

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