1. Why should the base solution be carbonate free?

2. If only the equivalent weight of the unknown was desired, would it be acceptable to use acid-base indicators to detect the endpoints?

3. Using the titration curve and the first and second derivative data and curves, show and discuss why in a potentiometric titration it is critical to add the titrant in small increments in the region of the end point.

4. How does Ka depend upon ionic strength? How does the ionic strength vary during the course of the titration?

5. What effect does temperature have on the dissociation constant?

6. If the equivalent weight of an unknown acid is known, can you determine the molecular weight?

7. Why is only one inflection observed for some diprotic acid?

8. Describe for the chosen acid, conditions in the titration that are "good" buffer conditions.