Which statement about acid-base indicators is not correct? * A- A weak acid can be used as an acid-base indicator provided that the chemical structures of the weak acid and its conjugate base differ slightly. B- The end point of the titration is not a specific colour but the point where one drop of acid or base from the burette changes the colour of the solution in the conical flask. C- Phenolphthalein can be used to detect the end point of the titration of a strong base with a weak acid. D- All these statements are correct. E- None of these statements are correct.
Which statement about acid-base indicators is not correct? * A- A weak acid can be used as an acid-base indicator provided that the chemical structures of the weak acid and its conjugate base differ slightly. B- The end point of the titration is not a specific colour but the point where one drop of acid or base from the burette changes the colour of the solution in the conical flask. C- Phenolphthalein can be used to detect the end point of the titration of a strong base with a weak acid. D- All these statements are correct. E- None of these statements are correct.
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter14: Equilibria In Acid-base Solutions
Section: Chapter Questions
Problem 37QAP: Given three acid-base indicators—methyl orange (end point at pH 4), bromthymol blue (end point at...
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Which statement about acid-base indicators is not correct? *
A- A weak acid can be used as an acid-base indicator provided that the chemical structures of the weak acid and its conjugate base differ slightly.
B- The end point of the titration is not a specific colour but the point where one drop of acid or base from the burette changes the colour of the solution in the conical flask.
C- Phenolphthalein can be used to detect the end point of the titration of a strong base with a weak acid.
D- All these statements are correct.
E- None of these statements are correct.
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