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# IMPORTANT FORMULAE OF SOLUTION

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### IMPORTANT FORMULAE OF SOLUTION

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(1) Mass Percentage:

(2) Volume Percentage:

(3) Parts Per million: (4) Molarity (M) If volume of solution is in ml then divide it by 1000 to change into liters

Number of gram equivalents = Acidity / Basicity is the number of ions given by the component.

(8) Henry’s law (9) Roult’s law Vapour pressure of component in solution Vapour pressure of pure component Mole fraction of component

(10) Relative lowering of vapour pressure (11) Elevation in Boiling Point (12) Depression in freezing point (13) Osmotic pressure (14) Vant Hoff Factor (i) i < 1      (Association)

i > 1     (Dissociation)

i = 1 (No association or dissociation)

Ex – In case of Association Ex. In case of Dissociation
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