Lecture Notes on Acids, Bases, and Equilibria

Vocabulary flashcards covering key concepts from the lecture notes.

Polyprotic Acid

An acid with multiple ionizable protons.

Oxalic Acid

A polyprotic acid with two ionization constants, Ka1 and Ka2.

Common Ion Effect

The shift in equilibrium caused by the addition of a compound having an ion in common with the dissolved substance.

Buffer

A solution that resists changes in pH upon the addition of small amounts of acid or base.

pH Buffer

Resists change to added H+ or OH-.

Henderson-Hasselbalch Equation

pH = pKa + log ([A-]/[HA]), where [A-] is the concentration of the conjugate base and [HA] is the concentration of the weak acid.

pKa

pKa = -log(Ka), where Ka is the acid dissociation constant.

Aqueous Equilibria

Deals with buffers, titrations, and solubility (Ksp).