Consider a buffered solution containing CH3NH3Cl and CH3NH2. Which of the following statements are true concerning this solution? (Ka for CH3NH3+ = 2.2 × 10-11). (Select all that apply.) A. If HCl were added to the initial buffered solution, then the CH3NH3+ would increase. B. If [CH3NH2] < [CH3NH3+], then pH is larger than the pKa value. C. A solution consisting of 0.10 M CH3NH3Cl and 0.10 M CH3NH2 would have a higher capacity than one containing 1.0 M CH3NH3Cl and 1.0 M CH3NH2. D. If [CH3NH2] > [CH3NH3+], then the [H+] is smaller than the Ka value. E. Adding more [CH3NH3Cl] to the initial buffer solution will decrease the pH.
Consider a buffered solution containing CH3NH3Cl and CH3NH2. Which of the following statements are true concerning this solution? (Ka for CH3NH3+ = 2.2 × 10-11). (Select all that apply.) A. If HCl were added to the initial buffered solution, then the CH3NH3+ would increase. B. If [CH3NH2] < [CH3NH3+], then pH is larger than the pKa value. C. A solution consisting of 0.10 M CH3NH3Cl and 0.10 M CH3NH2 would have a higher capacity than one containing 1.0 M CH3NH3Cl and 1.0 M CH3NH2. D. If [CH3NH2] > [CH3NH3+], then the [H+] is smaller than the Ka value. E. Adding more [CH3NH3Cl] to the initial buffer solution will decrease the pH.
Chemistry
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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
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Consider a buffered solution containing CH3NH3Cl and CH3NH2. Which of the following statements are true concerning this solution? (Ka for CH3NH3+ = 2.2 × 10-11).
(Select all that apply.)
A. If HCl were added to the initial buffered solution, then the CH3NH3+ would increase.
B. If [CH3NH2] < [CH3NH3+], then pH is larger than the pKa value.
C. A solution consisting of 0.10 M CH3NH3Cl and 0.10 M CH3NH2 would have a higher capacity than one containing 1.0 M CH3NH3Cl and 1.0 M CH3NH2.
D. If [CH3NH2] > [CH3NH3+], then the [H+] is smaller than the Ka value.
E. Adding more [CH3NH3Cl] to the initial buffer solution will decrease the pH.
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