how-does-the-ph-of-a-solution-relative-to-the-pka-of-an-amino-group-affect-its-p

Question

How does the pH of a solution relative to the pKa of an amino group affect its protonation state?

Accepted Answer

If pH < pKa, the amino group is protonated.

Answer

If pH = pKa, the amino group is deprotonated.

Answer

If pH > pKa, the amino group is protonated.

Answer

pH has no effect on protonation state.