Which of the following titrations will have an equivalence point pH that is greater than 7?
Correct: B
When a strong acid is titrated with a strong base, the equivalence point pH is 7. When a strong acid is titrated with a weak base, the equivalence point pH is less than 7 because the conjugate acid of the weak base will hydrolyze to produce H⁺ ions. When a weak acid is titrated with a strong base, the equivalence point pH is greater than 7 because the conjugate base of the weak acid will hydrolyze to produce OH⁻ ions. A strong acid with a strong acid will not react at all, so no equivalence point exists.