Which of the following pairs of solutions can act as a buffer?
CH₃COOH and CH₃COOâ»Na is the scientifically accurate answer to this question. Within the study of Acid, Base, pH, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of CH₃COOH and CH₃COOâ»Na directly address what is being asked. Among the other options, HCl and NaCl, NaOH and NaCl, and Hâ‚‚SOâ‚„ and HSOâ‚„â» do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 2