posted by Jeff .
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
If you will show me what you've done so far and explain the parts you don't understand I can help you through those parts. Taken together, however, this is a BUNCH of typing.
I only need help with parts c) and d)