Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Ionic strength calculation

  1. Mar 6, 2010 #1

    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?

  2. jcsd
  3. Mar 6, 2010 #2


    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
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook