What is a buffer solution?

1 Answer
anor277
Apr 15, 2016

A buffer solution is a mixture of a weak base and its conjugate acid in appreciable quantities. It acts to resist gross changes in #pH#.

Explanation:

The buffer equation is simply:

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

When #[HA]=[A^-]#, #pH=pK_a#. Why?

There should be many answers on these boards that deal with these sorts of problems. You will have to dig for them.

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