Chemistry

A buffer solution contains HC2H3O2 at a concentration of 0.225 M NaC2H3O at a concentration of 0.164 M. The value of Ka for acetic acid is 1.75 × 10-5. Calculate the pH of this solution using the Henderson-Hasselbalch equation. Could you please show steps...thanks a bunch...:)

asked by Chemistry Chick
  1. If you can read and substitute there is nothing to this.
    pH = pKa + log[(base)/(acid)]
    Calculate pKa from pKa = -log Ka. I think that is something like 4.76. Then
    (base) = the acetate = 0.164M
    (acid) = the acetic acid = 0.225M
    Plug and chug.

    posted by DrBob222

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