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  3. Chemistry
  4. The molecular conductivity of acetic acid at infinite dilution is 390 S ⋅ cm 2 mole -1 and for 0.1 M acetic acid solution is 5.8 S ⋅ cm 2 mole -1. The hydrogen ion concentration of the solution is

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Q. The molecular conductivity of acetic acid at infinite dilution is $390\, S \cdot cm ^2 mole ^{-1}$ and for $0.1\, M$ acetic acid solution is $5.8\, S \cdot cm ^2 mole ^{-1}$. The hydrogen ion concentration of the solution is

NEETNEET 2022Electrochemistry

Solution:

$\alpha=\frac{\wedge_{ C }}{\wedge^{\infty}}=\frac{5.8}{390} \cong 15 \times 10^{-3}$
$\left[ H ^{+}\right]= C \alpha=0.1 \times 15 \times 10^{-3}=15 \times 10^{-4}$