Question

The area of the titration curve where [HA] is fairly close to the [A-] is called the

a. Equivalence point
b. Buffer region
c. Inflection point
d. End point

Answer 1

The area of the titration curve where [HA] is fairly close to [A-] is known as the buffer region, which occurs around the midpoint of the titration.

Step-by-step explanation:

The area of the titration curve where [HA] is fairly close to the [A-] is called the buffer region. The buffer region corresponds to the part of a titration curve that shows minimal change in pH with addition of acid or base. This region lies around the midpoint of the titration, where half the acid (HA) has been neutralized, resulting in equal concentrations of the acid (HA) and its conjugate base (A-), which creates a buffer solution.