Concentration Units

is the ratio of the mass of the solute to the mass of the solution

percent by mass= mass of solute/ mass of soln * 100%

mole fraction of A= moles of A/ total moles of all components

the number of moles of solute dissolved in 1 kg of solvent (1000g)

m = moles of solute/ mass of solvent (kg)

M = Moles of solute/ Liters of soln