what is the pH of a solution of CH3COONa in water?

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what is the pH of a solution of CH3COONa in water?

2006-09-22 07:04:15 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

As the conjugate base of acetic acid, sodium acetate in solution would have a pH of about 9.24 dependent somwhat on the concentration.

2006-09-22 07:16:37 · answer #1 · answered by Favoured 5 · 0⤊ 0⤋

Depends on the concentration. You need to use the Kb expression for acetate ion to determine the pH.

Kb = [CH3COOH] [OH-]/[CH3COO-]

Solve for OH- concentration and then either figure out pOH and subtract that number from 14 to get pH, or use Kw to get H+ concentration and then get pH.

2006-09-22 07:18:19 · answer #2 · answered by TheOnlyBeldin 7 · 0⤊ 0⤋