A 50.0-mL sample of 0.300M propionic acid, HC3H5O2 (a weak acid), was titrated with 0.150 M NaOH.
Ka for propionic acid is 1.3 x 10-5.
a) What is the pH before any NaOH was added?
b) What is the pH after 75.0 mL of the NaOH was added?
a) What is the pH at half-equivalence point?
b) What is the pH at the equivalence point?