pka value

Basic questions from students; resources for projects and reports.

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what is pka value? How it help us to develop an analytical method in case of acid/base/neutral compound. please explain.
pka value is described in many places. For a start, I will suggest: http://en.wikipedia.org/wiki/Acid_dissociation_constant.

There are many ways that the pKa is used, both for sepatation as well as characterization of chemical species.

(And this discussion probably belongs under student projects?)
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