Chemistry Solutions Class 12th Chemistry

1 molal aqueous solution of an electrolyte A₂B₃ is 60% ionized. The boiling point of the solution at 1 atm is----------- K. (Rounded – off to the nearest integer)

[Given K_b for (H₂O) = 0.52 K kg mol^-1]

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Vishal Baghel | Contributor-Level 10

4 months ago

$A_{2} B_{3} ? 2 A^{+ 3} + 3 B^{- 2}$

123

$∴ i = 1 + 4 α = 1 + 4 * 0.6 = 1 + 2.4 = 3.4$

$Δ T_{b} = i k_{b} m = 3.4 * 0.52 * 1 = 1.768 \approx 1.77 K$

$T_{b} = 374.77 K \approx 375 K .$

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