Concentration of Reactants

Definition

The concentration of reactants refers to the amount of reactant substances present in a chemical reaction at any given time. It is usually measured in moles per liter (M).

Analogy

Think about making lemonade. The more lemons and sugar you add, the stronger your lemonade will be. In this case, lemons and sugar are your reactants, and their quantity determines the concentration of your lemonade.

Related terms

Molarity: This is a measure of concentration in chemistry, defined as the number of moles of solute per liter of solution.

Solute: A substance that is dissolved in another substance (the solvent), forming a solution.

Solution: A homogeneous mixture composed of two or more substances. In such a mixture, a solute is dissolved in another substance, known as a solvent.