The mass of the solution is still 120 grams. When a
solute dissolves in a solvent, the masses of the solute and solvent combine to
give the mass of the solution.
A solution is a homogeneous mixture of two or more substances, where one substance (the solute) is dissolved in another (the solvent).
Examples:
• Salt dissolved in water
• Sugar dissolved in tea
In the solution of salt in water, salt is the solute, and water is the solvent.
Another name for a weak solution is a "dilute solution."
A saturated solution is a solution in which the maximum amount of solute has been dissolved in the solvent at a given temperature and pressure, resulting in no further dissolution.
The most plentiful liquid solution on Earth is water.
One common solvent other than water is ethanol (ethyl alcohol).
The solubility of a substance refers to the maximum amount of a substance that can dissolve in a particular solvent under specific conditions, usually expressed in terms of grams of solute per 100 grams of solvent.