Chemical Solution

What is a chemical solution

A chemical solution is homogeneous mixture of one or more substances dissolved in another substance in greater proportion.

A chemical solution is composed of solute and solvent. The solute is the substance that dissolves and the solvent that dissolves it.

Chemical solutions can present the three states of matter: liquid, physical and gaseous. In turn, its solutes and its solvents can also present these three states.

The mixture of alcohol in water, for example, is a liquid solution of solute and liquid solvent. Air is made up of nitrogen, oxygen and other gases resulting in a gaseous mixture. On the other hand, amalgamation of a solid solute like gold with a liquid solvent like mercury gives a solid solution.

Concentration of chemical solutions

The chemical concentration will determine in physical units of weight, volume or parts per million (ppm) the percentage that the solute presents in the solution. The concentration of solutions is expressed through its molarity (mol/lt), molality (mol/kg) and molar fraction (mol/mol).

Knowledge of the concentration in a chemical solution is important, since it will determine the amount of solute and solvent present to determine the factors of change and recreate the solution for later use or study.

Types of chemical solutions

The types of chemical solutions are divided into the degree of solubility of the solute in the solvent, also called solutions.

Solutions can be dilute, concentrated or saturated:

  • The dilute solutions They have a low percentage of solute relative to solvent.
  • The concentrated solutions have a large percentage of solute in the solvent.
  • The saturated solutions are those that do not admit more solute in the solvent.
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See also solute and solvent.

Although chemical solutions are usually found in a liquid state, they can also be found in a gaseous or solid state. Metal alloys, for example, are solid homogeneous mixtures, and air, on the other hand, is a gaseous chemical solution.

See also Dissolution