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  • The equivalent conductances of Ba2+ and Cl- are 63.5 ohm-1 cm2 eq-1 and 76 ohm-1 cm2 

The equivalent conductances of Ba2+ and Cl- are 63.5 ohm-1 cm2 eq-1 and 76 ohm-1 cm2 eq-1,respectively, at infinite dilution. The equivalent conductance (in ohm-1 cm2) of BaCl2 at infinite dilution will be:

Option: 1

101


Option: 2

239.5


Option: 3

203


Option: 4

139.5


Answers (1)

best_answer

From Kohlrausch's Law :

\begin{aligned} \Lambda_{\mathrm{eq}\left(\mathrm{BaCl}_{2}\right)}^{\circ} &=\lambda_{\mathrm{eq}\left(\mathrm{Ba}^{2+}\right)}^{\circ}+\lambda_{\mathrm{eq}(\mathrm{Cl}^-)}^{\circ} \\ &=63.5+76=139.5 \mathrm{\: S} \mathrm{\: cm}^{2} \mathrm{\: eq}^{-1} \end{aligned}


Therefore, option(4) is correct

Posted by

Ritika Jonwal

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