Determination of pKa Values via Titration
1. After completing the titration, you observe a steep rise in pH following the buffering region. What does this steep rise indicate?
2. Which of the following factors is most critical for ensuring an accurate determination of the pKa value in the experiment?
3. At the half-equivalence point during the titration of a weak acid with a strong base, the pH of the solution is expected to be:
4. If the experimental titration curve shows a significantly lower buffering capacity than expected, which of the following could be a possible cause?
5. Which equation is used to calculate the pKa from the titration data in this experiment?
6. Which aspect of the titration curve is most useful for determining the buffering capacity of the weak acid?
7. If your experimental pKa value differs significantly from the literature value, which of the following is NOT a likely reason?