Which of the following represents the pH of a mixture of two solutions?
pH = pKa + log ([Base]/[Acid]) accurately defines or describes the concept asked in this question. Within pH and Buffer, precise definitions and terminology are essential for clear scientific communication. The other options (Mâ‚Vâ‚ + Mâ‚‚Vâ‚‚ = M₃(Vâ‚+Vâ‚‚), pH = -log [Hâº], and pH = log [OHâ»]) either describe related but distinct concepts, use incorrect terminology, or confuse similar-sounding terms that have different scientific meanings. A thorough understanding of exact definitions helps distinguish between closely related biological concepts and is crucial for competitive examinations.
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 2