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Equivalent, Molar Conductivity and Cell Constant

Resistance of...

Question

Resistance of 0.1 M $K C l$ solution in a conductance cell is 300 ohm and conductivity is $0.013 S c m^{- 1}$ . The value of cell constant is :

A

3.9 c m^{- 1}

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B

39 m^{- 1}

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C

3.9 m^{- 1}

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D

None of these

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Solution

The correct option is A $3.9 c m^{- 1}$
Conductivity $K = 0.013 S c m^{-}$

Resistance= $R = 300 o h m$

Cell constant= $K \times R = 0.013 \times 300 = 3.9 c m^{- 1}$ .

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