concentration of solutions and molality

Solution

Consists of a dissolved substance and a dissolving medium

Solute

The dissolved substance

Solvent

The dissolving medium

Molarity

The number of Moles of solute contained in 1 liter of solution

Stock solution

usually solutions in concentrated form

Molality

The number of moles of solute dissolved in one kilogram (1000 g) of solvent

Molality is also known as

Molal concentration

Mole fraction

ratio of the moles of solute or solvent in solution to the total number of moles of both the solvent and solute.

Solute is often a

Salt, acid, or base

Dilution

process of adding water to achieve the desired molarity for a particular solution

Solutions are

Homogeneous mixtures

Concentration expression

Shows the amount of solute in a specified amount of solvent or solution

Solvent term #2

Solution composed of two liquids, the liquid that is in excess is called solvent