How can a small amount of a certain liquid act in a enormous amount of another liquid, like chlorine in a water reservoir?

Question

How can a small amount of a certain liquid act in a enormous amount of another liquid, like chlorine in a water reservoir?

In: Chemistry

Answer 1

It’s all about the concentration. You only need a small amount of chlorine molecules per unit of water to keep it clean. So, if you take a highly concentrated chlorine solution, you can dissolve a small volume of that into the reservoir to get the right (small) amount of chlorine per unit of water.