Redox Reactions And Electrochemistry Ques 721
Question: Molar conductance’s of $ BaCl_2,H_2SO_4 $ and HCl at infinite dilutions are $ x_1,x_2 $ and $ x_3 $ respectively. Equivalent conductance of $ BaSO_4 $ at infinite dilution will be:
Options:
A) $ (x_1+x_2-x_3)/2 $
B) $ x_1+x_2-2x_3 $
C) $ (x_1-x_2-x_3)/2 $
D) $ (x_1+x_2-2x_3)/2 $
Show Answer
Answer:
Correct Answer: D
Solution:
[d] $ \lambda _m^{\infty }(BaSO_4)=\lambda _{B{a^{2+}}}^{\infty }+\lambda _{SO_4^{2-}}^{\infty } $
$ =\lambda _m^{\infty }(BaCl_2)=\lambda _m^{\infty }{{(H_2SO_4)}^{-}}-2\lambda _{(HCl)}^{\infty } $
$ =x_1+x_2-2x_3;,\lambda _e^{o}\frac{1}{2}\lambda _m^{\infty }(BaSO_4) $
