A PowerPoint that addresses reviews the basic properties and characteristics of acids and bases such as dissociation constants, Lewis definition, Arrhenius definition and Bronsted-Lowry definitions before explaining the pH and pH scale both conceptually and mathematically. The presentation provides several sample problems and calculation requiring students to solve for pH using the -log(H3O+), hydronium ion concentration based upon pH, and finally [OH-] based upon hydronium ion concentration.