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Ionic strength calculation

  1. Mar 6, 2010 #1
    Hi,

    I have a solution containing acetic acid and NaCl. The solution is adjusted to a particular pH value by adding NaOH. For the calculation of the undissociated acetic acid concentration, I use the correction suggested by Sortwell 2001 (J. Food Prot. 63(2): 222-230 (2000)), which says that I have to account for the ionic strength in order to calculate pKa properly.

    But my question is: how do I calculate this ionic strength? Do I only take NaCl into account? Or do I also account for the presence of NaOH?

    Thanks!
     
  2. jcsd
  3. Mar 6, 2010 #2

    Borek

    User Avatar

    Staff: Mentor

    All ions present in the solution, but I have already answered this question somewhere else :wink:
     
    Last edited by a moderator: Aug 13, 2013
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