Question

Why do weak bases have strong conjugate acids?

Answer 1

A strong acid like HCl donates its proton so readily that there is essentially no tendency for the conjugate base Cl– to reaccept a proton. Consequently, Cl– is a very weak base.

Answer 2

Answer:

Weak Base - Strong Conjugate Acid Pair. A weak Brønsted-Lowry base shows very little tendency to gain a proton. ... Cl- has little tendency to gain a proton so it is a weak base, but its conjugate acid, HCl, has an enormous tendency to donate a proton it is a strong acid. The conjugate acid of a weak base is a strong acid.