# How is molar conductivity of an aqueous electrolyte solution measured experimentally

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How is molar conductivity of an aqueous electrolyte solution measured experimentally

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Molar conductivity: The conductivity of a colume of solutin containgin on egram molecular weight of the electrolyte placed between two parallel electrodes separated by a distance of unit length of 1 meter is called molar conductivity (^^_(m))
Relation between conductivity and molar conductivity :
^^_(m)=k/c,therefore c= constant
to  The conductance of a solutin measured in a conductivity cell.
to  By using the conductivity cells
Resistance (R )=(l)/(kxxA)
l = distance between electrodes, A = Area of cross section, k= conductivity
G ^(**)=l/A= cell constant
to Cell constant is measured by measuring the resistance of the cell containing a solution whose conductivity is known.
to Cell constant determined is used for measuring the resistance (or) conductivity.
therefore molar conductivity ^^_((m))=x/c
^^_((m))=(k(Scm^(-1)))/(100(Lm^(-3)"molarity(mole/lit)"))