Question

What are the acid base pairs in the following equation: `HCOOH(aq) + H_2O(l) rightleftharpoons HCOO^(-)(aq) + H_3O^(+)(aq)`?

Answer 1

Acetic acid and acetate, and water and the hydronium ion.

`CH_3COOH` is a weak acid, with a conjugate base `CH_3COO^(-)`.

`H_2O` is the base (in this case), and `H_3O^(+)` is the conjugate acid.