Question:
What is meant by the conjugate acid-base pair? Find the conjugate acid/base for the following species:
$\mathrm{HNO}_{2}, \mathrm{CN}^{-}, \mathrm{HClO}_{4}, \mathrm{~F}^{-}, \mathrm{OH}^{-}, \mathrm{CO}_{3}^{2-}$, and $\mathrm{S}^{-}$
Solution:
A conjugate acid-base pair is a pair that differs only by one proton.
The conjugate acid-base for the given species is mentioned in the table below.