how does pH of a buffered solution change upon the addition of acid or base compound compared to an unbuffered

Answer 1

A buffer provides resistance to pH changes. So, for a buffered solution, when an acid is added, there will only be no decrease, or only a slight drop in pH. When a base is added, there will also be no decrease or only a slight increase in pH.

But for a unbuffered solution, it is unable to resist pH changes and so if acid or bases are added, the pH of the unbuffered solution fluctuates greatly and is greatly affected by the pH of the solution added.

*acid decreases pH while base increases pH

Answer 2

A buffered solution is as a air-back relative to the addition of acid or base. When you have a buffered solution, the pH varies more slowly That that of an unbuffered