conjugate acid

[M Usman]

Difference between acid and conjugate acid :confused:

[chem_tr]

Hello, suppose that an acid is HA and its conjugate base is A-. An acid is the (more) protonated form of the common anion, and the conjugate base is less (or not) protonated one.

For example, H_3PO_4 is an acid, and its conjugate base is H_2PO_4^-. H_2PO_4^- may be another acid, yet less powerful than the previous one, for its conjugate base, HPO_4^{2-}, which is a stronger acid than PO_4^{3-}

Hope you got what conjugate acid/base pair means.