We titrate 20.0 mL of a 0.300 mol / L solution of cyanuric acid
(HCN, pKa = 9.21) with a 0.150 mol / L NaOH solution.
a) Calculate the pH of the initial solution (HCN 0.300 mol /
L)
b) Calculate the volume of NaOH solution required to reach the
equivalence point
c) Calculate the pH at the equivalence point
d) Calculate the pH at the half-equivalence point
e) Approximately, draw the titration curve (pH as a function of the
volume of NaOH), identifying the initial pH, the half-equivalence
point and the equivalence point.