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MHT CET20243 May 2024Evening ShiftChemistrySolutionsActual

Which of the following equation correctly represents molar mass of a solute by knowing boiling point elevation?

Options

  1. AM ₂= 1000 T _ b W ₂ ~K _ b W _ i
  2. BM ₂= 1000 K _ b W ₁ ~T _ b W ₂
  3. CM ₂= 1000 T _ b W ₁ ~K _ b W ₂
  4. DM ₂= 1000 K _ b W ₂ ~T _ b W ₁

Correct answer

D. M ₂= 1000 K _ b W ₂ ~T _ b W ₁

Step-by-step solution

The correct relation between elevation of boiling point ( T _ b ) and molar mass of solute ( M ₂ ) is M ₂= K _ b W ₂ ~T _ b W ₁ Here, W₁ and W₂ represents masses of solvent and solute respectively. K_b represents molal elevation in boiling point constant.

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