Question

In which part of the pH range (acidic, basic, or neutral) will the equivalence points fall for each of the following titrations?

-Strong acid + weak base
-Strong base + weak acid
-Strong acid + weak base
-Weak acid + weak base"

Answer 1

The equivalence point for the titration of a strong acid with a strong base falls in the neutral range. For the titration of a weak acid with a strong base, the equivalence point falls in the basic range, and for the titration of a strong acid with a weak base, the equivalence point falls in the acidic range. The pH at the equivalence point for a weak acid with a weak base can vary.

Step-by-step explanation:

In the titration of a strong acid with a strong base, the equivalence point occurs at a pH of 7.0, which is neutral. So the equivalence point falls in the neutral range.

For the titration of a weak acid with a strong base, the pH at the equivalence point is greater than 7.0, so it falls in the basic range.

Similarly, for the titration of a strong acid with a weak base, the pH at the equivalence point is less than 7.0, so it falls in the acidic range.

For the titration of a weak acid with a weak base, the pH at the equivalence point can vary depending on the specific weak acid and weak base being used.