In the titration of a weak monoprotic acid with a strong base,the pH of the titration solution halfway to the endpoint will be A)equal to the pK_a of the weak acid. B)greater than 7.00. C)equal to 7.00. D)greater than the pK_a of the weak acid. E)less than the pK_a of the weak acid.

Question

Quizplus · Accepted Answer

At the halfway point to the equivalence point in the titration of a weak acid with a strong base, the concentration of the weak acid equals the concentration of its conjugate base. According to the Henderson-Hasselbalch equation, this results in the pH being equal to the pKa of the weak acid.

In the Titration of a Weak Monoprotic Acid with a Strong