# What does conjugate acid and base mean?

Jun 18, 2016

See here.

#### Explanation:

The conjugate base of any acid is the initial acid $H X$ LESS a proton, ${H}^{+}$ to give ${X}^{-}$.

The conjugate acid of any base is the initial base ${X}^{-}$ PLUS a proton, ${H}^{+}$ to give $H X$.

AS with any chemcal reaction, both MASS and CHARGE are CONSERVED.

Can you tell me the conjugate acid of ammonia, $N {H}_{3}$? Can you tell me its conjugate base (which does not exist in water)?