You have 15.0mL of a 0.10M solution of cyanic acid, HOCN, titrated with 0.075M NaOH. K_a for cyanic acid is
\(3.5*10^{-4}\)
. Calculate the pH at the 6 points of titration (fraction titrated = 0, 0.25, 0.50, 0.75, 1.0, 1.25). Hint: Since these concentrations are not the same, first calculate the volume of NaOH required to reach the equivalent point.