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MHT CET202313 May 2023Morning ShiftChemistrySolutionsActual

What is the molal elevation constant if one gram mole of a nonvolatile solute is dissolved in 1 ~kg of ethyl acetate? ( T _ b =x ~K )

Options

  1. Ax ~K ~kg ~mol ⁻¹
  2. Bx 2 ~K ~kg ~mol ⁻¹
  3. C2 x ~K ~kg ~mol ⁻¹
  4. D3 x ~K ~kg ~mol ⁻¹

Correct answer

A. x ~K ~kg ~mol ⁻¹

Step-by-step solution

aligned & M ₂= 1000 ~K _ b W ₂ T _ b W ₁ & K _ b = M ₂ T _ b W ₁ 1000 ~W ₂ & Now , W ₂= one gram mole = M ₂ ~g & ~W ₁=1 ~kg =1000 ~g & K _ b = M ₂ x 1000 1000 M ₂ =x ~K ~kg ~mol ⁻¹ aligned

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