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A 0.15 molal solution of K ₄ [ Fe ( CN )₆ ] in water freezes at -0.65^ C . What is the apparent percentage of dissociation of this compound in this solution? (K_f . for water .=1.86^ C mol ⁻¹ )

Options

  1. A0.33
  2. B0.52
  3. C0.63
  4. D0.79

Correct answer

A. 0.33

Step-by-step solution

aligned 0.65 & =i 1.86 0.15 i & =2.33=1+4 & =-0.33 aligned

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