First slide

Theory of dilute solutions

Question

The molal elevation constant of water = 0.52 K m^-1. The boiling point of 1.0 molal aqueous KCI solution (assuming complete dissociation of KCI) should be

Moderate

Solution

$∆ T_{b} = K_{b} \times m x i = 0.52 \times 1 \times 2 = 1.04; ∴ T_{b} = 100 + 1.04 = 101.04 ° C$

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