1. Tardigrade
  2. Question
  3. Chemistry
  4. 20g of a binary electrolyte (mol. wt =100) are dissolved in 500 g of water. The depression in freezing point of the solution is 0.74oC ( Kf=1.86 text K molality-1 ) The degree of ionization of the electrolyte is:

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Q. 20g of a binary electrolyte (mol. wt =100) are dissolved in 500 g of water. The depression in freezing point of the solution is $ {{0.74}^{o}}C $ ( $ {{K}_{f}}=1.86\text{ }K $ $ molalit{{y}^{-1}} $ ) The degree of ionization of the electrolyte is:

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Solution:

$ \Delta T=\frac{1000\times 1.86\times 20}{m\times 500} $ $ 0.74=\frac{1000\times 1.86\times 20}{m\times 500} $ $ m=100 $ Actual molecular mass = 100 $ \therefore $ The degree of ionization of the electrolyte is 0%.