Kohlrausch’s Law - Electrochemistry Video Lecture | Physical Chemistry

Kalash law the law states that the
munnar or equivalent conductivity of an
electrolyte at infinite dilution is the
sum of molar or equivalent conductivity
of ions produced by the electrolyte at
infinite dilution or the sum of molar or
equivalent conductivity of cation and
anion at infinite dilution is called
molar conductivity of electrolyte cap
infinity equals to n + lambda C infinity
plus n minus lambda a infinity where n
plus and n minus are the number of
cations and anions respectively lambda C
infinity and lambda a infinity a
recruitment conductivity of cations and
anions at infinite dilutions
respectively or limiting molar
conductivity of cation and anion the
applications of kourosh law or one
helpful in calculating the molar
conductance at infinite dilution for
weak electrolytes example conductance of
acetic acid at infinite dilution is
obtained by cap infinity ch3cooh equals
to lambda infinity ch3coo minus plus
lambda infinity h+ equation 1 this
equation can be obtained by the molar
conductance at infinite dilution for
some strong electrolytes like sodium
acetate ch3coo na HCl hydrochloric acid
and NaCl sodium chloride cap
infinity ch3coo na equals to lambda
infinity ch3coo minus plus lambda
infinity and a plus equation to cap for
infinity HCL equals to lambda H infinity
plus plus lambda infinity CL minus
equation 3 cap for infinity NaCl equals
to lambda infinity na plus lambda
infinity CL minus equation 4 equation 1
can be obtained by adding 2 and 3 and
subtracting for cap infinity ch3cooh
equals to cap infinity ch3coo na plus
cap infinity H CL minus cap infinity and
ACL the equation 1/2 for calculating the
degree of dissociation of the
electrolyte by using the formula alpha
equals to cap C by cap infinity where
alpha equals to degree of dissociation
cap C is equivalent conductance at a
concentration C cap infinity is
equivalent to conductance at infinite
dilution 3 determination of the
ionization constant of a weak
electrolyte for determination of the
solubility of a sparingly soluble salt