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Question

A solution freezes at -0.372°C. What is the molality of the solution if Kf = 1.86 K kg mol⁻¹ ?

Options

Choose one · Correct answer highlighted

Explanation

Δ Tf = Kf · m . 0.372 = 1.86 · m . m = (0.372/1.86) = 0.2 mol/kg .