sorry, I miss your reply to this answer. I suspect that it was deleted when we transfered to the new server as I notice that every posts before the switch were deleted.
It may have been eliminated. Do you want me to do it again. If so, let me know exactly what is giving you trouble with the question and I will try to tailor it to answer those questions instead of trying to write a generic answer about titration curves.
I found it. Scroll down (its the last on on this page but by the time you read this it may be on page 2) to a post by Anonymous on June 11 @ 7:15 am and answered by DrBob222 on June 11 @ 1:16 pm. The entire graph summary and instructions for drawing the graph are there. If you can't find it I'll try to cut and paste into a new post.