calculate the ph at equivalence point and find the indicators for the following titrations:
a. 25 mL of 0.5 M HI with 0.1 M KOH b. 25 mL 0.1 M CH3NH2 with 0.1 M HCI c. 25 mL of 0.1 M CH3COOH with 0.1 M HCI