Hello--
I performed an experiment in which I titrated three weak acids. I have multiple Ka values from each graph: before any NaOH was added, at the midpoint, and at the endpoint. A question for my lab writeup asks:
Is there any reason to accept one value over the others? Why?
I would assume that you would want the value that came at the beginning, because you haven't added any base yet, but I really haven't a clue why.
Please *delete me*