Indicate using true or false for each of the following statements: 7. The pH of a solution containing ephedrine 0.1 M and ephedrine HCI 0.01 M? (Kb for ephedrine = 2.3 x 10-5) is 7.99. 8. The maximum buffer capacity for solutions can be achieved when the required pH double than pKa of the acid.. 9. When one of the buffer components is depleted completely the solution lose its buffering capacity and can no longer resist the change in pH. 10. At a hydrogen ion concentration of 1.75 x 10^-5, what is the capacity of a buffer containing 0.10 mole each of acetic acid and sodium acetate per liter of solution? (Ka = 1.75 x 10^-5 ) is 9.11.
Indicate using true or false for each of the following statements: 7. The pH of a solution containing ephedrine 0.1 M and ephedrine HCI 0.01 M? (Kb for ephedrine = 2.3 x 10-5) is 7.99. 8. The maximum buffer capacity for solutions can be achieved when the required pH double than pKa of the acid.. 9. When one of the buffer components is depleted completely the solution lose its buffering capacity and can no longer resist the change in pH. 10. At a hydrogen ion concentration of 1.75 x 10^-5, what is the capacity of a buffer containing 0.10 mole each of acetic acid and sodium acetate per liter of solution? (Ka = 1.75 x 10^-5 ) is 9.11.
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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Indicate using true or false for each of the following statements:
7. The pH of a solution containing ephedrine 0.1 M and ephedrine HCI 0.01 M? (Kb for ephedrine = 2.3 x 10-5) is 7.99.
8. The maximum buffer capacity for solutions can be achieved when the required pH double than pKa of the acid..
9. When one of the buffer components is depleted completely the solution lose its buffering capacity and can no longer resist the change in pH.
10. At a hydrogen ion concentration of 1.75 x 10^-5, what is the capacity of a buffer containing 0.10 mole each of acetic acid and sodium acetate per liter of solution? (Ka = 1.75 x 10^-5 ) is 9.11.
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