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Salt of Weak Acid and Strong Base

In infinite d...

Question

In infinite dilusions, the equivalent conductances of $B a^{2 +}$ and $C l^{-}$ are $127$ and $76 o h m^{- 1} c m^{- 1} e q v t^{- 1}$ . The equivalent conductivity of $B a C l_{2}$ at indefinite dilution is?

A

101.5

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B

203.5

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C

139.5

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D

279.5

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Solution

The correct option is B $139.5$
The equivalent conductance of BaCl₂ at infinite dilution,

λ_∞ of BaCl₂=1/2 λ_∞ of Ba²⁺+ λ_∞of Cl⁻

=127/2+76

=139.
Option C is correct answer

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