Posted by Janet on Friday, April 20, 2012 at 11:13pm.
(H^+) of a salt of weak acid + weak base (NH4F is such a salt) is sqrt(KwKa/Kb)
Does ph differ with changes in concentration?
In theory no. In practice, probably so. Since pH = 7 + 1/2 pKa - 1/2 pKb there is no concn term; therefore, it isn't concn dependent.
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