69. Solving a chemistry problem

3. An aliquot of 100.0 ml of a 0.100 M formic acid solution is titrated with a 1.00 M KOH solution.
A. Calculate pH at p=0% titration; 99.9%; 100% and 100.1%. Give the derivation of the equations used (5 points x 4 = 20 points).
B. Choose an appropriate indicator. (5 points)
BONUS (10 points):
Determine the type and magnitude of the indicator error with the selected indicator.