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An aqueous solution of a salt M X 2 at certain temperature has a Van't Hoff factor of 2 . What is the degree of dissociation for this solution of the salt?

Options

  1. A0 . 50
  2. B0 . 33
  3. C0 . 67
  4. D0 . 80

Correct answer

A. 0 . 50

Step-by-step solution

α = i - 1 k - 1 = 2 - 1 3 - 1 = 1 2 =0.50 Here, i= van't hoff factor α =degree of dissociation k= total number of ions(dissociated)

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