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Question

A solution reduces the vapor pressure of a solvent from 28 mm Hg to 26 mm Hg. What is the mole fraction of the solute?

Options

Choose one · Correct answer highlighted

Explanation

(p⁰ - p/p⁰) = xsolute . (28 - 26/28) = (2/28) ≈ 0.0714 .