1. You may have already noticed that the shape of yourspectrophotometric titration curve is quite different than theshapes of the potentiometric titration curves which you haveconstructed in earlier experiments. Why? (HINT: Think about themathematical relationships between pH and concentration andabsorbance and concentration . . .).
2. When performing a potentiometric titration it is veryimportant to make a large number of measurements near the endpoint,while for a spectrophotometric titration one actually ignores themeasurements obtained near the endpoint. Explain.
3. In order for a photometric method to be used for a titration,what requirement(s) must be met by the titration system?
