Molarity and Molality

Molarity

the concentration of a solution expressed as the number of moles of solute dissolved in each liter of solution.

saturated solution

contains as much solute as can possibly be dissolved under existing conditions of temperature and pressure.

concentration

the amounts of solute in a given amount of solvent or solution.

supersaturated solution

a solution that contains more solute particles than are needed to form a saturated solution.

mole fraction

is the number of moles of one component of a solution divided by the total number of moles in the solution

molality

the number of moles of solute dissolved in each kilogram of solvent

unsaturated solution

a solution that has less than the maximum amount of solute that can be dissolved.