Chapter 16, Problem 16.149QP

A solution of weak base is titrated to the equivalence point with a strong acid. Which one of the following statements is most likely to be correct?

1. a The pH of the solution at the equivalence point is 7.0.
2. b The pH of the solution is greater than 13.0.
3. c The pH of the solution is less than 2.0.
4. d The pH of the solution is between 2.0 and 7.0.
5. e The pH of the solution is between 7.0 and 13.0.

The reason that best supports my choosing the answer above is

1. a Whenever a solution is titrated with a strong acid, the solution will be very acidic.
2. b Because the solution contains a weak base and the acid (titrant) is used up at the equivalence point, the solution will be basic.
3. c Because the solution contains the conjugate acid of the weak base at the equivalence point, the solution will be acidic.