What is the term for the amount of solute present in a given volume of solution?

Concentration is the term used to describe the amount of solute present in a given volume of solution. It quantifies how much solute is dissolved in a specific volume of solvent or solution, enabling comparisons between different solutions. Concentration can be expressed in various units, such as moles per liter (molarity), grams per liter, or percentage by volume, depending on the context.

In contrast, solubility refers to the maximum amount of solute that can dissolve in a solvent at a given temperature and pressure, not the amount present in a specific solution. Dilution involves reducing the concentration of a solution by adding more solvent, which does not define the amount of solute in the solution. Purity indicates the degree to which a substance is free from impurities or other substances, which is unrelated to the concept of concentration. Therefore, concentration is the appropriate term that accurately describes the situation presented in the question.