Question

What is the conjugate base CH3COOH?

Answer 1

`CH_3COO^-`

Explanation:

According to Lewis Concept 'a substance which donates `H^+` to other is an Acid and a substance which accepts `H^+` is a Base.
When `CH_3COOH` is dissolved in water it gives `H^+` to water and become `CH_3COO^-`.
`CH_3COOH` + `H_2O` `rightleftharpoons` `CH_3COO^-` +`H_3O^+`
Now this `CH_3COO^-` is able to accept `H^+` from `H_3O^+`.
So it is base. But actually this base (`CH_3COO^-`) is derived from an acid `(CH_3COOH)` that' s why `CH_3COO^-` is conjugate base of `(CH_3COOH)` acid.