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AP EAMCET2016ChemistrySolutions

6 ~g of a non-volatile, non-electrolyte X dissolved in 100 ~g of water freezes at -0.93^ C . The molar mass of X in g mol ⁻¹ is (K_f . of . H ₂ O =1.86 ~K ~kg ~mol ⁻¹ )

Options

  1. A60
  2. B140
  3. C180
  4. D120

Correct answer

D. 120

Step-by-step solution

T _f= K _f m0.93= 1.86 6 1000 M 100 M 120

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