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A 0.01 molal solution of ammonia freezes...

`A 0.01` molal solution of ammonia freezes at `-0.02^(@)C`. Calculate the van't Hoff factor, `i` and the percentage dissociation of ammonia in water. `(K_(f(H_(2O))))=1.86` deg `"molal"^(-1)`.

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The correct Answer is:
`1.075, 7.5`.
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