Practice question

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 (M₁V₁ + M₂V₂ = M₃(V₁+V₂), pH = -log [H⁺], and pH = log [OH⁻]) 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.