Henderson-Hasselbalch Calculator

Calculate buffer pH using Henderson-Hasselbalch equation: pH = pKa + log([base]/[acid]). Find pH from pKa and concentrations, calculate base/acid ratio from desired pH, determine individual concentrations from total buffer concentration, or calculate pKa from equilibrium concentrations. Features 8 common buffer systems (Acetate, Phosphate, Tris, Ammonia, etc.) and buffer range assessment. Perfect for chemistry and biology students.