Find out about the Ka and Kb relationship and pKa and pKb relationship between conjugate acids and bases. [14:33]

Learn about the relationship between Ka and Kb, and pKa and pKb. See examples of finding Ka of a weak acid given Kb of the conjugate base. [11:20]

An introduction to buffer systems, which regulate pH in blood. [6:20]

Define buffers and their compositions, and learn about carbonate buffering systems in nature, acid rain, pH of buffers, and titration. See an experiment using indicators to showcase just how awesome buffers are. [10:51]

This tutorial describes the two main situations where you get a buffer: making a buffer for a specific pH by combining a weak acid and a salt containing the conjugate base, and using a neutralization reaction by combining a weak acid and...

Learn the basics of the Bronsted-Lowry definition of acids and bases in this video. [8:56]

This Khan video explains the Bronsted-Lowry definition of acids and bases and conjugate acids and bases. [8:56]

A buffer solution contains a mixture of a weak acid and its conjugate base (or a weak base and its conjugate acid). The equilibrium between the weak acid and its conjugate base allows the solution to resist changes to pH when small...

This video explains buffer capacity and uses an example showing why it depends on the absolute concentrations of the conjugate acid and base. [10:43]

This video explains the Bronsted-Lowry and Lewis definitions of acids and bases. [7:48]

This video shows examples of different kinds of neutralization reactions and analyzes the pH of the resulting salt solution. [7:32]