Question

Where does the equivalence point occur on a titration curve for a strong acid/strong base titration?

• A. At the endpoint, after pH 7.
• B. At pH 7, in the middle of the dramatic slope.
• C. At the very end of titration, between pH 10-12.
• D. Before the slope increases dramatically, between pH 2 and 4.

Answer 1

The correct option is B At pH 7, in the middle of the dramatic slope.

The equivalence point occur at pH 7, in the middle of the dramatic slope,
on a titration curve for a strong acid/strong base titration.
At the equivalence point, the salt of strong acid and strong base is completely hydrolyzed which gives a neutral solution with pH 7 as hydrogen ion concentration is equal to hydroxide ion concentration.