Can you explain what you don't understand here?
The first thing you do is calculate where the equivalence point is. A is just calculation of pH of a weak acid. Then you have all of the calculations leading up to the eq. pt, all of the calculations after the eq. pt. and finally the eq. pt pH.
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.200 M HClO(aq) with 0.200 M KOH(aq). The ionization constant for HClO can be found here.
A. Before any addition of KOH
B. After addition of 25.0 mL of KOH
C. After 30.0 mL of KOH
D. After 50.0 mL of KOH
E. After 60.0 mL of KOH
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