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The equivalent conductance of two strong...

The equivalent conductance of two strong electrolytes at infinite dilution in `H_(2)O` (where ions move freely through a solution) at `25^(@)C` are given below:
`A_(CH_(3)COONa)^(@)=91.0S cm^(2)//"equiv"`
`A_(HCl)^(@)=426.25cm^(2)//"equiv"`
What additional information/quantity one needs to calculate `A^(@)` of an aqueous solution of acetic acid?

A

The limiting equivalent conductance of `H^(+)(lambda_(H^(+))^(@))`

B

`A^(@)` of chloroacetic acid `(ClCH_(2)COOH)`

C

`A^(@)` of NaCl

D

`A^(@)` of `CH_(3)COOK`

Text Solution

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The correct Answer is:
C
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The equivalent conductances of two strong electrolytes at infinite dilution in H_(2)O (where ions move freely through a solution) at 25^(@)C are given below : Lambda_(CH_(3)COONa)^(@) = 91.0 S cm^(2)//"equi v" . Lambda_(HCl)^(@) = 426.2 S cm^(2)//"equiv" . What additional information//quantity one need to calculate Lambda^(@) of an aqueous solution of acetic acid ?

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The equivalent conductances of two strong electrolytes at infinite dilution in H_2 O (where ions move freely through a solution) at 25^@C are given below: Lambda_(CH_3COOH)^@ = 91.0 S cm^@// equiv Lambda_(HCI)^@ =42.2 S cm^2// equiv What additional information // quantity one needs to calculate Lambda^@ of an aqueous solution of acetic actid ?

The molar conductance of acetic acid at infinite dilution if Lambda^@ for CH_3 COONa,NACI and HCI are 91.0, 126.5 and 426.2 S cm^2 "mol"^(-1) respectively is :

The equivalent conductances at infinite dilution (A_(0)) for electrolytes BA and CA are 140 and 120 S cm^(2) /eg. For equivalent conductance at infinite dilution for BX is 198 S cm^(2) /eg. The A_(0) ( in S cm^(2)//eq ) of CX is

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Calculate K_(a) of acetic acid it its 0.05N solution has equivalent conductances of 7.36 mho cm^(2) at 25^(@)C (lambda_(CH_(3)COOH)^(oo) = 390.70)

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