SATHEE: Electrochemistry - Result Question 7

Electrochemistry - Result Question 7

####8. Which of the following expressions correctly represents the equivalent conductance at infinite dilution of $A l_{2} (S O_{4})_{3}$ , ? Given that $Λ_{A l^{3 +}}$ and

$Λ_{S O_{4}^{2 -}}^{\circ}$ are the equivalent conductances at infinite dilution of the respective ions. [2010]

(a) $\frac{1}{3} Λ_{A l^{3 +}}^{\circ} + \frac{1}{2} Λ_{S O_{4}^{2 -}}^{\circ}$

(b) $2 Λ_{A l^{3 +}}^{\circ} + 3 Λ_{S O_{4}^{2 -}}^{\circ}$

(d) $(Λ_{A l^{3 +}}^{\circ} + Λ_{S O_{4}^{2 -}}^{\circ}) \times 6$

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Solution:

(c) Equivalent conductance of an electrolyte at infinite dilution is given by the sum of equivalent conductances of the respective ions at infinite dilution.

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Electrochemistry - Result Question 7

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