The following plot shows a titration curve for the titration of 1.00 L of 1.00 M diprotic acid H₂A with NaOH.
-Which point a-d represents the HX^-/X2^- buffer region?

Question

The following plot shows a titration curve for the titration of 1.00 L of 1.00 M diprotic acid H₂A with NaOH.

The following plot shows a titration curve for the titration of 1.00 L of 1.00 M diprotic acid H<sub>2</sub>A with NaOH. -Which point a-d represents the HX<sup>-</sup>/X2<sup>-</sup> buffer region? A) point a B) point b C) point c D) point d

-Which point a-d represents the HX^-/X2^- buffer region?

Quizplus · Accepted Answer

The buffer region in a titration curve is represented by a flat region where the pH remains relatively constant despite the addition of small amounts of acid or base. In the given titration curve, the buffer region is from point c to point d, where the pH changes slowly with the addition of NaOH. Hence, the best choice is C, representing point c.

The Following Plot Shows a Titration Curve for the Titration