Which of the following statements about buffers is TRUE? Select one: A. When pH = pKa, the weak acid and salt concentrations in a buffer are equal. B. At pH values lower than the pKa, the salt concentration is higher than that of the acid. C. The strongest buffers are those composed of strong acids and strong bases. D. The pH of a buffered solution remains constant no matter how much acid or base is added to the solution.
Which of the following statements about buffers is TRUE? Select one: A. When pH = pKa, the weak acid and salt concentrations in a buffer are equal. B. At pH values lower than the pKa, the salt concentration is higher than that of the acid. C. The strongest buffers are those composed of strong acids and strong bases. D. The pH of a buffered solution remains constant no matter how much acid or base is added to the solution.
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 67QAP: Indicate whether each of the following statements is true or false. If the statement is false,...
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Which of the following statements about buffers is TRUE?
Select one:
A.
When pH = pKa, the weak acid and salt concentrations in a buffer are equal.
B.
At pH values lower than the pKa, the salt concentration is higher than that of the acid.
C.
The strongest buffers are those composed of strong acids and strong bases.
D.
The pH of a buffered solution remains constant no matter how much acid or base is added to the solution.
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