Which of the following is TRUE?
A) The equivalence point is where the amount of acid equals the amount of base during any acid-base titration.
B) At the equivalence point, the pH is always 7.
C) An indicator is not pH sensitive.
D) A titration curve is a plot of pH vs. the [base]/[acid] ratio.
E) None of the above are true.

Question

Quizplus · Accepted Answer

At the equivalence point, the moles of acid and base are equal, which means the amount of acid equals the amount of base. This is the definition of the equivalence point.

Answer: E
 None of the statements are entirely true. B is not true, as the pH at equivalence point depends on the nature of the acid and base being used. C is not true, as the whole purpose of indicators is to detect pH changes. D is not true, as the titration curve shows pH plotted against the volume of added titrant, not against the [base]/[acid] ratio.

Which of the Following Is TRUE