4- CONCENTRATIONS: just a way to quantify the constituents of a solution.


Concentration of the different solutes of a solution can be expressed in:

g/L: weight of solute / liter of solution

%: Percentage concentration

mole/L of solution or M: Molarity - it is the # molecules of EACH solute found in a solution per unit of volume of solution. It is expressed in mole/ liter of solution

mole/kg of solvent or m: Molality - it is the # molecules of EACH solute found in a solution per unit of weight of solvent. It is expressed in mole / 1000g of solvent