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.

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Solution

NaNO₂ is the salt of a strong base (NaOH) and a weak acid (HNO₂).

Now, If x moles of the salt undergo hydrolysis, then the concentration of various species present in the solution will be:

Therefore, degree of hydrolysis

= 2.325 × 10^–5

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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.

NaNO2 is the salt of a strong base (NaOH) and a weak acid (HNO2). Now, If x moles of the salt undergo hydrolysis, then the concentration of various species present in the solution will be: Therefore, degree of hydrolysis = 2.325 × 10–5

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.

NaNO₂ is the salt of a strong base (NaOH) and a weak acid (HNO₂).

Now, If x moles of the salt undergo hydrolysis, then the concentration of various species present in the solution will be:

Therefore, degree of hydrolysis

= 2.325 × 10^–5