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Equivalent, Molar Conductivity and Cell Constant

Equivalent co...

Question

Equivalent conductance of NaCI, HCI and $C H_{3} C O O N a$ at infinite dilution are 126.45, 425.16 and $91 o h m^{- 1} c m^{2}$ 4 respectively. What would be the equivalent conductance of $C H_{3} C O O H$ at infinite dilution?

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Solution

$C H_{3} C O O N A + H C l ⇌ N a C l + C H_{3} C O O H$
At infinite dilution,
let equivalent conduction be $λ$
then
$λ C H_{3} C O O N a + λ H C l = λ N a C l + λ C H_{3} C O O H$
$425.16 + 91 = 126.45 + λ C H_{3} C O O H$
$λ C H_{3} C O O H = 425.16 + 91 - 126.45 o h m^{- 1} c m^{2}$
$= 389.71 o h m^{- 1} c m^{2}$

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