👉 Dilutions are a method used in chemistry and biology to reduce a concentration of a substance from a larger volume to a smaller one. This is often done by adding more solvent or diluent, such as water or a different type of liquid, to the original solution. For example, if you have a 100 mL solution of a chemical that needs to be diluted to 5 mL, you would add 5 mL of water to the original 100 mL. This would