What is the primary use of a volumetric flask?

The primary use of a volumetric flask is to prepare solutions of a specific volume, which is essential in quantitative laboratory work. This type of flask is designed with a narrow neck and a flat bottom, allowing for precise measurement of liquids. The neck of the flask typically has a mark that indicates the point at which the volume of the solution is exactly equal to the specified measurement, which makes it ideal for creating solutions of exact concentrations.

When preparing a solution, the solute is first added to the flask, and then a solvent is added until the solution reaches the mark on the neck of the flask. This method ensures that the desired concentration of the solution is accurate, which is crucial in experiments and reactions that depend on precise measurements. Therefore, the use of a volumetric flask is vital for tasks that require exact volume measurements, which facilitates consistency and reliability in scientific experiments.