In the titration of a weak acid HA with 0.100 M NaOH, the stoichiometric point is known to occur at a pH value of approximately 9. Which of the following indicators would be best to use to mark the endpoint of this titration? A) an indicator with K, = 10-11 B) an indicator with K, = 10-14 C) an indicator with Ka 10-9 D) an indicator with K, = 10-10 E) an indicator with K, = 10-12 A

In the titration of a weak acid HA with 0.100 M NaOH, the stoichiometric point is known to occur at a pH value of approximately 9. Which of the following indicators would be best to use to mark the endpoint of this titration? A) an indicator with K, = 10-11 B) an indicator with K, = 10-14 C) an indicator with Ka 10-9 D) an indicator with K, = 10-10 E) an indicator with K, = 10-12 A

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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