What is the molality of solution that has freezing point depression 3K and freezing point depression…

What is the molality of solution that has freezing point depression 3K and freezing point depression constant $5 \mathrm{~K} \mathrm{~kg}$ $\mathrm{mol}^{-1}$ ?
  1. 0.6 m
  2. 0.85 m
  3. 0.7 m
  4. 0.5 m

Solution

$\Delta \mathrm{Tf}=\mathrm{k}_{\mathrm{f}} \mathrm{m}$ $3=5 m$ $\mathrm{m}=0.6 \mathrm{~m}$

Asked in: MHT CET 2022 (11 Aug Shift 1)

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