How does a buffer work in chemistry?

1 Answer
anor277
Aug 23, 2016

See this [old answer.](https://socratic.org/questions/how-do-buffers-maintain-ph)

Explanation:

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

Clearly, we can take a weak acid #[HA]#, add half an equiv of strong base, and we a buffer solution, whose #pH=pK_a#.

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