Which statement about the titration of 0.10 M HNO₃ with 0.10 M KOH is not correct? A) The endpoint always comes before the equivalence point. B) The pH at the equivalence point is 7.00. C) The initial pH is 1.00. D) At the equivalence point the pH increases sharply. E) The net ionic equation for the titration reaction is H₃O⁺ + OH^- 2 H₂O.

Question

Quizplus · Accepted Answer

The statement "The endpoint always comes before the equivalence point" is not correct. In fact, the endpoint is the point at which the indicator changes color or the signal from the pH meter changes, indicating that the equivalence point has been reached. In an ideal titration, the endpoint should coincide with the equivalence point, where the moles of acid and base are exactly equal and the pH is 7 for a neutralization reaction.

Which Statement About the Titration of 0