Solutions Formulas Flashcards
(12 cards)
Mole fraction (N)
N=mole of substance/total no. of moles
Percentage mass or volume
(L or g of solute/L or g total solution) X 100
Molarity (M)
M=mole of solute/L of solution
Molality (m)
m=mole of solute/Kg of solvent
Density
d=mass/volume
ΔVP of solution
ΔVP of solution=mole fraction of solvent X VP of pure solvent
VP of solution 1
VP of solution=original pressure-ΔVP
VP of solution 2
VPsolution=Nsolute X Psolvent
ΔBoiling point
ΔTb=Kb X m
Boiling point
BP=Original temperature + ΔTb
ΔFreezing Point
ΔTf=Kf X m
Freezing Point
FP=original temperature-ΔTf