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NEETChemistryIonic Equilibrium

The ionization constant of nitrous acid is 4.5 × 10 -4 . Calculate the pH of 0.04 M sodium nitrite solution and also its degree of hydrolysis.

Options

  1. ApH = 8.00, Degree of hydrolysis (α) = 0.0000023
  2. BpH = 3.50, Degree of hydrolysis (α) = 0.0000009
  3. CpH = 3.20, Degree of hydrolysis (α) = 0.0000012
  4. DpH = 3.10, Degree of hydrolysis (α) = 0.0000012

Correct answer

A. pH = 8.00, Degree of hydrolysis (α) = 0.0000023

Step-by-step solution

Correct Option is : (A) pH = 8.00, Degree of hydrolysis (α) = 0.0000023

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