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Equivalence point

  1. Oct 9, 2004 #1
    Hi ppl, I was wondering. I have found the Equivalence point from the graph of volume versus pH for a given titration. To determine the Half equivalence point for to calculate Pka=Ph, do I half the pH or the volume which I found for the Equivalence point initially? Thanks for any help, Joe
  2. jcsd
  3. Oct 9, 2004 #2


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    Gold Member

    Dear friend,

    Half equivalence in titrations means that the half mole of total acid or base is neutralized; it is not the half of pH value. Volume may be incorrect, so I recommend that you stick to mole ratios.
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