Which acid-base combination is depicted by this titration curve? The dot on the curve is located at the titrant volume where the titration solution pH equals 7.
A) Titration of a weak acid with a strong base.
B) Titration of a strong acid with a strong base.
C) Titration of a weak base with a strong acid.
D) Titration of a strong base with a strong acid.
E) Not enough information provided.

Question

Which acid-base combination is depicted by this titration curve? The dot on the curve is located at the titrant volume where the titration solution pH equals 7. 
A) Titration of a weak acid with a strong base. 
B) Titration of a strong acid with a strong base. 
C) Titration of a weak base with a strong acid. 
D) Titration of a strong base with a strong acid. 
E) Not enough information provided.

Quizplus · Accepted Answer

A titration curve for the titration of a weak acid with a strong base will have an equivalence point where the pH equals 7. This is because the conjugate base of the weak acid will react with water to form hydroxide ions, leading to an increase in pH.

Which Acid-Base Combination Is Depicted by This Titration Curve? the Dot