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MHT CET202210 Aug 2022Morning ShiftChemistrySolutionsActual

Calculate the cryoscopic constant when 0.8 gram nonvolatile solute with molar mass 64 ~g ~mol ⁻¹ dissolved in 43 gram solvent lowers the freezing point by 0.34 ~K .

Options

  1. A2.5 ~K ~kg ~mol ⁻¹
  2. B2.0 ~K ~kg ~mol ⁻¹
  3. C0.85 ~K ~kg ~mol ⁻¹
  4. D1.17 ~K ~kg ~mol ⁻¹

Correct answer

D. 1.17 ~K ~kg ~mol ⁻¹

Step-by-step solution

aligned & T _ f = k _ f m & 0.34= k _ f 0.8 64 1000 43 & k _ f =1.169 1.17 aligned

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