human
How do I know if I'm using the right amount of a chemical in my experiments?
assistant
You can use a titration to determine how much of the chemical you are using. Titrations involve adding a small amount of one substance to another until a certain reaction occurs. The color, volume, or other physical properties of the solution will change as more of the first substance is added. This allows you to calculate the concentration of the first substance in the solution by comparing it to known standards.