Buffers: Henderson-Hasselbalch Proof pH=pKa

The video discusses the Henderson-Hasselbalch equation, which is used to calculate the pH of buffers or the concentration of species in a buffer. It explains two types of problems: one with known pH, pKa, and total buffer concentration, and another with known species concentrations and pKa. The video provides a proof that when pH equals pKa, the concentrations of conjugate acid and base are equal, using logarithmic properties. It concludes with a preview of the next video, which will cover direct pH calculations.

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