A 0.1 molal aqueous solution of a weak acid is 30% ionized. if k f for water is 1.86c/m, the freezing point of the solution will be
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Answer. -0.24℃
Explanation:
For weak acid i=1+0.3
As weak acid is 30% ionised.
Then ∆Tf=Kf.m
∆Tf=1.86×0.1×1.3
∆Tf=0.24℃
So Tf= -0.24℃.
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