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5 ~g of non-volatile water soluble compound X is dissolved in 100 ~g of water. The elevation in boiling point is found to be 0.25 . The molecular mass of compound X is

Options

  1. A35 g
  2. B40 g
  3. C20 g
  4. D60 g

Correct answer

C. 20 g

Step-by-step solution

The elevation in boiling point is, aligned T_b & = 1000 k_b w₂ M₂ w₁( in ( g )) M₂= 1000 k_b 5 0.25 100 M₂ & =20 ~g aligned

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