Question

The ionisation constant of ammonium hydroxide is 1.77 × 10⁻⁵ at 298 K. Hydrolysis constant of ammonium chloride is:

विकल्प

• 5.65 × 10⁻¹⁰

• 6.50 × 10⁻¹²

• 5.65 × 10⁻¹³

• 5.65 × 10⁻¹²

Answer 1

5.65 × 10⁻¹⁰

Explanation:

For hydrolysis of salt,

Hydrolysis constant,

k_h = `"k"_"w"/"k"_"b"`

= `(1 xx 10^-14)/(1.77 xx 10^-15)`

= 5.65 × 10⁻¹⁰