Chemistry
posted by Rickie .
What is the point called on a graph of pH vs log {[A]/[HA]} when [A] = [HA]? Graphs are listed as “y vs. x”.

That's the halfway point in the neutralization of acid/base or base/acid.
Sometimes called the midpoint. That's the point at which pH = pKa for the titration of an acid or pKb for the titration of a base.
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