pH - Quick! Get the litmus paper

Quick! Get the litmus paper

But what if you are not a hydrangea plant? How do you determine the pH of a solution? By using an indicatorPigments that change color when they come into contact with acidic or basic solutions.. Indicators are pigments that change color when they come into contact with acidic or basic solutions. Litmus paper is an indicator. By dipping litmus paper into liquids and watching the change in color, chemists can tell whether a liquid is an acid or a base.

To determine the pH of a solution, scientists also use a machine called a digital pH meter, which has an electric probe connected to it. The probe is dipped into a solution and measures its pH. A large dial on the meter shows the pH reading. To calculate the total amount of acid or base in a solution, the chemist uses a process called [The entire page is 232 words long]