Question

The dissociation constant of two acids HA₁ and HA₂ are 3.14 × 10⁻⁴ and 1.96 × 10⁻⁵ respectively. The relative strength of the acids will be approximately ______.

Options

• 1 : 4

• 4 : 1

• 1 : 16

• 16 : 1

Answer 1

The dissociation constant of two acids HA₁ and HA₂ are 3.14 × 10⁻⁴ and 1.96 × 10⁻⁵ respectively. The relative strength of the acids will be approximately 4 : 1.

Explanation:

`α_1/α_2 = sqrt(("K"_("a"_1))/("K"_("a"_2)))`

= `sqrt((3.14 xx 10^-4)/(1.96 xx 10^-5))`

= 4 : 1