Khan Academy
Khan Academy: P H, P Oh, and the P H Scale
Definitions of pH, pOH, and the pH scale. Practice calculating the pH of a strong acid or base solution. Learn the relationship between acid strength and the pH of a solution.
Cosmo Learning
Cosmo Learning: Introduction to Solid State Chemistry
A collection of video lectures from a course that investigates the application of basic chemistry principals to engineering systems. The course draws from industrial practice to give examples of the application in engineering systems. In...
CK-12 Foundation
Ck 12: Chemistry for High School
This digital textbook covers core chemistry concepts and includes interactive features, real-world examples, and videos.
Upper Canada District School Board
Tom Stretton's Advanced Placement Chemistry: Nuclear Chemistry
This online textbook chapter provides learners with advanced-level material on acids and bases.
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: P H and Equilibrium
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.
Frostburg State University
General Chemistry Online: Water to Wine
The molecular basis of indicator color changes. Includes Chime structures for the acid and base forms of phenolphthalein, methyl orange, red cabbage indicator, and cyanidin diglucoside.
University of Waterloo (Canada)
Univ. Of Waterloo: Conjugate Acid Base Pairs
This page, created by a chemistry professor from the University of Waterloo, provides an introduction to conjugate acid-base pairs.
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Weak Acid Equilibrium
Learn about what happens when a weak acid is added to water. View examples, an acid dissociation constant table, and a study sheet.
Museum of Science
The P H Factor
This is a great source of chemistry experiments and information dealing with pH. Learning objectives are provided to explain the basis for each activity. Japanese and Chinese versions are also provided.
Encyclopedia of Earth
Encyclopedia of Earth: Physics & Chemistry: P H
Explains what pH is and its use in defining what acids and bases are. Also talks about the importance of pH for regulating metabolism in life forms. Includes a chart showing the pH values of common liquids. (Published: July 30, 2010)
Wolfram Research
Wolfram Science World: Organic Chemistry
This site from ScienceWorld provides a brief look at some of the more common organic functional groups. The carboxylic acid group is also given. Quite a few links are provided at the bottom of the page for additional information.
Texas Instruments
Texas Instruments: Holt Modern Chemistry: Acid Base Titration
This activity Acid-Base Titration from the chapter Acid-Base Titration and pH uses the calculator program TITRAFC4 to display titration curves for the titration of a strong or weak acid with a strong base. The titration curve shows the...
Oklahoma State University
Oklahoma State University: Acid Base Overview
Beginning with the example of the hydrangea, this page gives a good overview of acid-base chemistry.
Dartmouth College
Dartmouth College: Acids, Bases, and Buffers 1: Monoprotic and Polyprotic Acids
In this experiment, you will explore the behavior of the monoprotic acid (acetic acid) and the polyprotic acid (phosphoric acid). By titrating, you will examine the acid and conjugate base species present across the pH scale and the...
Khan Academy
Khan Academy: Relationship Between Ka and Kb
Learn about the relationship between Ka of a weak acid and Kb for its conjugate base. Practice equations for converting between Ka and Kb, and converting between pKa and pKb.
American Chemical Society
Middle School Chemistry: P H and Color Change
Learners see a demonstration of a color change using universal pH indicator and then change the concentrations of an acid and a base using a universal indicator to test the pH of the resulting solutions. Through an animation, they see...
Sophia Learning
Sophia: Calculations: P H, P Oh, [H+], [Oh ]
Created to teach students of the 21st century, SOPHIA is bringing chemistry calculations straight to your fingertips. Become the commander of your own learning experiences as you take part in this interactive lesson.
Chemistry Collective
Chem Collective: Determine the Concentration of Acetic Acid in Vinegar
A virtual lab where students determine the concentration of acetic acid in vinegar using a 0.110 M NaOH standard solution and an acid-base indicator, phenolphthalein.
Georgia Department of Education
Ga Virtual Learning: Ap Chemistry: Chemical Reactions
Students discover the different types of reactions, and the driving forces behind those reactions. They learn how to write net ionic equations, and learn about specific types of reactions like acid-base neutralization and...
PBS
Pbs Teachers: Kitchen Chemistry
Conduct a series of virtual experiments using basic, acidic and neutral household liquids. Draw a conclusion from the results collected in an online lab journal.
Chemistry Collective
Chem Collective: Determining the P Ka and Concentration Ratio
Use the virtual lab to determine the pKa of a protein then create a buffer solution with a specific concentration ratio of the protein in its protonated/ unprotonated form.
Chemistry Collective
Chem Collective: Dna Dye Binding: Equilibrium and Buffer Solutions
Students examine equilibrium and buffer solutions in a biological setting.
Science Buddies
Science Buddies: Make Your Own P H Paper
In this "kitchen chemistry" project about acid/base chemistry, you will measure the acidity or alkalinity of a solution using a logarithmic scale called the pH scale. As you learn about the pH scale, you will have the chance to make your...
Simon Fraser University
Chem1 Virtual Textbook: Oxalic Acid
Acting as an overview from the General Chemistry Virtual Textbook, this site acts as one in a series of slides on acid-base systems. This particular slide deals with a diprotic acid, oxalic acid.