Which of the following is/are TRUE about equivalence and end points? I. The end point of a titration is reached when the titrant and analyte are stoichiometrically equal. II. When you are titrating a strong or weak acid with a strong base, the end point will always be faint pink using a phenolphthalein indicator. III. When you are titrating a strong or weak acid with a strong base, the volume needed to reach the end point will always be lower than that of the equivalence point. a.I, II and III b.II only c.III only d.I and III
Which of the following is/are TRUE about equivalence and end points? I. The end point of a titration is reached when the titrant and analyte are stoichiometrically equal. II. When you are titrating a strong or weak acid with a strong base, the end point will always be faint pink using a phenolphthalein indicator. III. When you are titrating a strong or weak acid with a strong base, the volume needed to reach the end point will always be lower than that of the equivalence point. a.I, II and III b.II only c.III only d.I and III
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. Which of the following is/are TRUE about equivalence and end points?
I. The end point of a titration is reached when the titrant and analyte are stoichiometrically equal.
II. When you are titrating a strong or weak acid with a strong base, the end point will always be faint pink using a phenolphthalein indicator.
III. When you are titrating a strong or weak acid with a strong base, the volume needed to reach the end point will always be lower than that of the equivalence point.
a.I, II and III
b.II only
c.III only
d.I and III
2. All but one are the criteria why KHP is generally used as the primary standard in determining the actual concentration of the sodium hydroxide titrant:
a.It is highly pure.
b.It is hygroscopic.
c.It is chemically stable.
d. It is inexpensive.
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