Dip litmus paper into the solution or add a drop of universal indicator. Use the sliders to change the pH of the solution and observe the effect on the indicators. Click Reset to start over.
This lab will allow you to examine the relationship between the pH of a solution and the hydrogen and hydroxide ion concentrations.
Acids, bases, and neutral solutions are used in everyday life for different purposes. Understanding the relationship between pH, hydrogen concentration, and hydroxide ion concentration will help you understand why certain solutions are acidic, basic, or neutral.