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April 19, 2014

Homework Help: Chemistry

Posted by ron on Thursday, September 13, 2012 at 1:04am.

I have a question regarding the titration curve. When the ph is equal pKa that mean there are equal amount of conjugate acid to conjugate base. When a weak acid dissociates for example
H3Po4 H+ H2PO4-
My problem: I donít understand how the ph rises after the halfway mark ( when ph = pka ) we are producing equal amounts of conjugate base and Hydrogen ions simultaneously
Also, Why is the conjugate base more in concentration after the halfway mark?

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