Question

What happens in a buffer when the level of H+ ions in solution increases

Answer 1

The protium ion reacts with the base, and pH is marginally diminished.
Hopefully this makes sense! I learned this in AP Chemistry and hope it's right.

Answer 2

pH reduction

Step-by-step explanation:

Increasing H⁺ ions consequently results in reduced OH⁻ ions concentration.

Also, the more hydrogen (H⁺) ions, the lower is the pH (hydrogen potential) on a solution. pH is the unit that indicates whether a compound is acidic or basic.

When the pH reaches levels between 0 and 7 , the solution becomes acidic.