A 0.446 g sample of an unknown monoprotic acid was titrated with 0.105 M KOH and the resulting titration curve is shown in the figure (Intro 1 figure) Determine pka of the acid.
Using the information from the figure, I have already determined the molar mass of the unknown acid. For this question I know I have to use pH = pka + log([base]/[acid]) but I don't know how to get [base]/[acid] at the equivalence point. According to the figure the pH is about 8 at the equivalence point.
Any help would be greatly appreciated!!