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1. Write the relation between molar conductance and molarity of an electrolyte solution.

2. λm∞ of NaCl, HCl and CH3COONa are 126.4, 425.9 and 91 S cm2mol-1 respectively. Calculate the λm∞ of acetic acid. 

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1. Λm\(\frac{1000k}{M}\)

2.  Λ° CH3COOH = Λ° CH3COONa +  Λ° HCl  -  Λ° Nacl

= 91 + 425.9 – 126.4

= 390.5 Ω-1 cm2 mol-1

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