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Homework Help: PH of sodium acetate

  1. Apr 5, 2010 #1
    1. The problem statement, all variables and given/known data

    Determine the pH of0.15 M solution of sodium acetate, ka = 1.8 x 10^-5




    3. The attempt at a solution

    Since there are no hydrogen ions that dissolve from sodium acetate, would I use the pH of water =7.0? Is the pH of water even affected by sodium acetate?
     
  2. jcsd
  3. Apr 5, 2010 #2

    Borek

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    Staff: Mentor

    No.

    Yes.

    Acetate anion is a weak base (conjugate base of acetic acid).

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  4. Apr 5, 2010 #3
    OK, so the OH concentration can be found by this reaction

    C2H3O2-+H2O <-> C2H3OOH + OH-?
     
  5. Apr 5, 2010 #4

    Borek

    User Avatar

    Staff: Mentor

    Yes.

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  6. Apr 5, 2010 #5
    Thanks a lot!
     
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