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PH of sodium acetate

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  • #1
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Homework Statement



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




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?
 

Answers and Replies

  • #2
Borek
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would I use the pH of water =7.0?
No.

Is the pH of water even affected by sodium acetate?
Yes.

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

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  • #3
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OK, so the OH concentration can be found by this reaction

C2H3O2-+H2O <-> C2H3OOH + OH-?
 
  • #4
Borek
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Yes.

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  • #5
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Thanks a lot!
 

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