In the titration of an unknown polyprotic weak acid with NaOH, which following statements are NOT correct?

Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter14: Equilibria In Acid-base Solutions
Section: Chapter Questions
Problem 48QAP: A 0.2481 M solution of KOH is used to titrate 30.00 mL of 0.269 M hydrobromic acid. Assume that...
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In the titration of an unknown polyprotic weak acid with NaOH, which following statements are NOT correct?

  A.

pH at the second equivalence point equals pKa2

  B.

There will be more than one equivalence point

  C.

The number of moles of an unknown polyprotic acid is equal to the number of moles of NaOH it requires to reach the first equivalence point

  D.

The third equivalence point will be reached at a higher pH than the second equivalence point

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