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If Kf value...

Question

If $K_{f}$ value of $H_{2} O$ is 1.86. The value of $Δ T_{f}$ for 0.1 m solution of non-volatile solute is:

18.6

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0.186

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1.86

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0.0186

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Solution

The correct option is B 0.186
$Δ T_{f}$ = $K_{f}$ $\times$ molality

$= 1.86 \times 0.1$

$= 0.186$

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