In a triprotic acid, which Ka has the lowest value? A) Kat B) Ka2 C) Ka3 D) Kb1

Question

Chemistry

Rayna Stephens

25 August, 05:33

In a triprotic acid, which Ka has the lowest value? A) Kat B) Ka2 C) Ka3 D) Kb1

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Answers (1)

Know the Answer?

Reese Munoz · Answer 1

A) Ka1

Explanation:

Dissociation constant of an acid shows the amount of the acid dissociated to furnish hydrogen ions.

The more the dissociation constant, the more stronger is the acid.

Generally for a polyprotic acids,

The first dissociation constant, Ka1 is large. After the dissociation of the first proton, the dissociation of more protons is suppressed as the equilibrium shifts to the acid side.