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Calculate the equilibrium concentration of hydrogen ions

  1. Sep 20, 2012 #1
    1. The problem statement, all variables and given/known data
     
    Last edited: Sep 20, 2012
  2. jcsd
  3. Sep 20, 2012 #2

    Borek

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    Staff: Mentor

  4. Sep 20, 2012 #3
    Thank you for the link Borek but i'm still lost
     
  5. Sep 20, 2012 #4

    Borek

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    Staff: Mentor

    You have to directly apply the ICE table method to your case.

    What is your HA? A-?

    Basically it is about stoichiometry - from the dissociation reaction you can easily see that for each mole/molecule of A- (H+) produced, one mole/molecule of HA is consumed. You just have to express concentrations of all three substances involved (HA, H+, A-) in terms of one unknown - best approach is to use H+ as the unknown, as you are asked about pH.
     
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