Q.

0.05M  NaOH solution offered a resistance of 31.6Ω in a conductivity cell at 298K. If the cell constant of the conductivity cell is 0.367cm–1, the molar conductivity of the NaOH solution is

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a

232Ω–1cm2mol–1

b

214Ω–1cm2mol–1

c

241Ω–1cm2mol–1

d

220Ω–1cm2mol–1

answer is A.

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Detailed Solution

λm=κ×1000M=1R×la×1000Mλm=131.6×0.367×10000.05≅232Ω-1 cm2 mol-1
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