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The normal freezing point of nitrobenzene `(C_(6)H_(5)NO_(2))` is `278.82K`. `A 0.25` molal solution of a certain solute in nitrobenzene causes a free

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The normal freezing point of nitrobenzene `(C_(6)H_(5)NO_(2))` is `278.82K`. `A 0.25` molal solution of a certain solute in nitrobenzene causes a freezing point depression of `2` degrees. Calculate the value of `K_(f)` for nitrobenzene.
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`DeltaT_(f)=K_(f)m`
`K_(f)=(DeltaT_(f))/(m)=(2)/(0.25)=8" K kg mole"^(-1)`
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