At 25° C, the ionization constant for anilinium hydroxide is 5.00 × 10-10. Thehydrolysis constant of anilinium chloride is

Question

At 25° C, the ionization constant for anilinium hydroxide is 5.00 × 10-10. Thehydrolysis constant of anilinium chloride is (A) 2.00 × 10-5 (B) 4.00 × 10-3 (C) 1.50 × 10-6 (D) 2.50 × 10-4

Tardigrade Admin · Accepted Answer

Given, Kb (ammonium hydroxide) =5.00 × 10-10 Kw=10-14 at 298 K Kh=(KW/Kb)=(10-14/5 × 10-10) =2 × 10-5

Q. At $2 5^{\circ} C$ , the ionization constant for anilinium hydroxide is $5.00 \times 1 0^{- 10}$ . Thehydrolysis constant of anilinium chloride is

$2.00 \times 1 0^{- 5}$

$4.00 \times 1 0^{- 3}$

$1.50 \times 1 0^{- 6}$

$2.50 \times 1 0^{- 4}$

Given, $K_{b}$ (ammonium hydroxide)
$= 5.00 \times 1 0^{- 10}$
$K_{w} = 1 0^{- 14}$ at $298 K$
$K_{h} = \frac{K _{W}}{K _{b}} = \frac{1 0 ^{- 14}}{5 \times 1 0 ^{- 10}}$
$= 2 \times 1 0^{- 5}$

Q. At 25∘C, the ionization constant for anilinium hydroxide is 5.00×10−10. Thehydrolysis constant of anilinium chloride is

2.00×10−5

4.00×10−3

1.50×10−6

2.50×10−4