What is the conjugate for benzoic acid, (HC7H5O2)?

1 Answer
Nov 11, 2015

The conjugate base of benzoic acid, C_6H_5C(=O)OH, is benzoate, C_6H_5C(=O)-O^-.

Explanation:

The conjugate base of any any acid is simply the parent acid, HA, less a proton, H^+. Mass and charge are conserved. On the other hand, the conjugate acid of any base, A^-, is simply HA, that is the parent base plus a proton, H^+.

Given this treatment, what is the conjugate base of hydroxide anion, HO^-?