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MHT CET20226 Aug 2022Evening ShiftChemistrySolutionsActual

Calculate the molality of a solution having freezing point depression 3.6 ~K and freezing point depression constant 4.8 ~K ~kg ~mol ⁻¹ .

Options

  1. A0.3 ~mol ~kg ⁻¹
  2. B0.9 ~mol ~kg ⁻¹
  3. C0.75 ~mol ~kg ⁻¹
  4. D0.5 ~mol ~kg ⁻¹

Correct answer

C. 0.75 ~mol ~kg ⁻¹

Step-by-step solution

We know aligned & T _ f = k _ f m & 3.6= m 4.8 & ~m =0.75 ~mol / kg aligned

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