3rd December 2019

lumenlearning
10

What is the effective pH range of a buffer?

Each conjugate acid-base pair has a characteristic pH range where it works as an effective buffer. The buffering region is about 1 pH unit on either side of the pKa of the conjugate acid.

Moreover, how does a buffer maintain a constant pH?

It can be also defined as the quantity of strong acid or base that must be added to change the pH of one liter of solution by one pH unit. The buffer range is the pH range where a buffer effectively neutralizes added acids and bases, while maintaining a relatively constant pH.

How is a buffer able to resist changes in pH?

Buffers. Buffers are solutions that resist changes in pH, upon addition of small amounts of acid or base. The can do this because they contain an acidic component, HA, to neutralize OH- ions, and a basic component, A-, to neutralize H+ ions.
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