eBook
Khan Academy

Khan Academy: Weak Acid Base Equilibria

For Students 9th - 10th
Learn about weak acid and base ionization reactions and the related equilibrium constants, Ka and Kb. Relate Ka and Kb to pH, and calculate percent dissociation.
Handout
University of Waterloo (Canada)

Univ. Of Waterloo: Conjugate Acids of Bases

For Students 9th - 10th
This site, created by a University of Waterloo Chemistry professor, applies conjugate pair theory. It also deals with the ionization constants for acids and bases.
Website
Oklahoma State University

Oklahoma State University: Acid Base Overview

For Students 9th - 10th
Beginning with the example of the hydrangea, this page gives a good overview of acid-base chemistry.
Activity
Michael Blaber, PhD

Florida State Univ.: Acid Base Equilibria: Dissociation of Water

For Students 9th - 10th
This article, which is provided for by the Florida State University Lecture notes on the dissociation of water. An interesting site to check out on the subject.
Interactive
Chiral Publishing

Chiral Publishing: An Introduction to Chemistry: P H and Equilibrium

For Students 9th - 10th
Learn where acids and bases fall on the pH scale and the correlation between hydrogen and hydroxide ions. See many examples of how to calculate the pH of a substance. Also find links to the chemistry textbook and tutorials.
Handout
Clackamas Community College

Clackamas Community College: Amphoterism

For Students 9th - 10th
Amphoterism is explained and specific examples are given at this site. Includes an explanation of the self-ionization of water and the reaction of some metal hydroxides.
Unit Plan
University of Arizona

Ua: Chemistry Tutorial

For Students 9th - 10th
This general tutorial begins with an explanation of the polarity of the water molecule and the effects this polarity has on the properties of water. Goes on to introduce organic molecules and has a thourough tutorial on the third page.
Unit Plan
John Wiley & Sons

Concepts in Biochemistry: Concept Reviews: Water, P H, and Non Covalent Bonding

For Students 9th - 10th
A detailed review of water and its structure. Included are diagrams, animated graphics, and review quizzes. For the advanced high school student.
eBook
Khan Academy

Khan Academy: Water Autoionization and Kw

For Students 9th - 10th
Learn about the autoionization of water, the autoionization constant Kw, and the relationship between [H+] and [OH-] in aqueous solutions.