- Joined
- Apr 29, 2011
- Messages
- 2,171
- Reaction score
- 863
TBR GC page 333 #75
Question: For which of these titrations is the pH at equivalence the same, regardless of concentration?
C: The titration of the first proton of a weak diprotic acid by a strong base
D: The titration of the second proton of a weak diprotic acid by a strong base
The answer is C. TBR explains that in this situation, you can just use the formula pI = average of pKa1 and pKa2. But can someone explain more intuitively/conceptually why statement C is true?
Question: For which of these titrations is the pH at equivalence the same, regardless of concentration?
C: The titration of the first proton of a weak diprotic acid by a strong base
D: The titration of the second proton of a weak diprotic acid by a strong base
The answer is C. TBR explains that in this situation, you can just use the formula pI = average of pKa1 and pKa2. But can someone explain more intuitively/conceptually why statement C is true?
