Question

. In an acid-base titration, a standard solution of 1.0 MHCl is added to a solution of potassium hydroxide (KOH). As the standard solution is added to a beaker, how does the pH change near the equivalence point?
The pH increases very quickly, more quickly than earlier or later in the titration.

The pH decreases very quickly, more quickly than earlier or later in the titration.

The pH increases gradually, at the same rate as earlier and later in the titration.

The pH decreases gradually, at the same rate as earlier and later in the titration.

Answer 1

Answer:

The pH decreases very quickly, more quickly than earlier or later in the titration.

I think because SA-SB titration have the straight line where the equivalence point is where pH change is very steep and fast. Also pH is gonna decrease because after equivalence point you have more acid then base.

Explanation: