What is a buffer? How do they work? How can they maintain pH?

1 Answer
Mar 17, 2018

Answer:

Well, a buffer is a solution of a weak base, and its conjugate acid in APPRECIABLE quantities...

Explanation:

...and a buffer acts to mimimize GROSS changes in #pH#...

See this old link.

A buffer is composed of a weak base, and its conjugate acid in appreciable quantities that acts to resists gross changes in #pH#...and for such a system...

#pH=pK_a+log_10{[[A^-]]/[[HA]]}#

What is #pH# when #[HA]=[A^-]#?