IMPORTANT FORMULAE OF SOLUTION

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IMPORTANT FORMULAE OF SOLUTION

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(1) Mass Percentage:

Mass % of component = image

(2) Volume Percentage:

      Volume % of component = image

(3) Parts Per million:

image

(4) Molarity (M)

image

image

If volume of solution is in ml then divide it by 1000 to change into liters

Ex – image

(5) image

(6) image

(7) image

Number of gram equivalents = image

Equivalent mass = image

Acidity / Basicity is the number of imageions given by the component.

(8) Henry’s law

image

       Or image

(9) Roult’s law

image

       imageVapour pressure of component in solution

       imageVapour pressure of pure component

        imageMole fraction of component

(10) Relative lowering of vapour pressure

image

          Or image

image

(11) Elevation in Boiling Point

image

(12) Depression in freezing point

image

(13) Osmotic pressure

image

(14) Vant Hoff Factor (i)

image

           i < 1      (Association)

           i > 1     (Dissociation)

           i = 1 (No association or dissociation)

(15) Degree of dissociation of Association  image image

 

Ex – In case of Association

image

Ex. In case of Dissociation

image