The equivalence point pH of the titration of four weak acids is given.Which is the strongest acid?
A)7.18
B)7.90
C)8.14
D)8.43

Question

Quizplus · Accepted Answer

The equivalence point pH of a weak acid titration is determined by the strength of the acid. The weaker the acid, the higher the pH at the equivalence point. Therefore, the strongest acid will have the lowest equivalence point pH. In this case, the acid with an equivalence point pH of 7.18 is the strongest, as it requires the most base to reach the equivalence point and has the lowest pH at that point. The other acids require less base, indicating that they are weaker.

The Equivalence Point PH of the Titration of Four Weak