chemistry 12.3 concentration of solutions

concentration of a solution

a measure of the amount of solute in a given amount of solvent or solution

dilute

a relatively small amount of solute in a solvent

concentrated

a relatively large amount of solute in a solvent

relate the molarity of a solution to the mass of solute present by knowing the

molar mass of the solute

symbol for Molarity

M

molarity equation

amount of solute (mol)/volume of solution (L)

symbol for molality

m

concentrations are expressed as modalities when studying properties of solutions related to

vapor pressure and temperature changes

molality is used because it doesn't change with changes in

temperature

molality equation

moles of solute/mass of solvent (kg)