, a solution
is a homogeneous mixture
composed of two or more substances. In such a mixture, a solute
is a substance dissolved
in another substance, known as a solvent
. The solution more or less takes on the characteristics of the solvent including its phase, and the solvent is commonly the major fraction of the mixture. The concentration
of a solute in a solution is a measure of how much of that solute is dissolved in the solvent, with regard to how much solvent is present.