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wedge(CICH(2))^(infty) COONa =224 omega...

`wedge_(CICH_(2))^(infty) COONa =224 omega^(-1) cm^(2) "g equiv"^(-)`
`wedge_(NaCI)^(infty)=38.5 omega^(-1) "g equiv"^(-1)`
`wedge_(HCI)^(infty)=203 omega^(infty) =203 omega^(-1) cm^(2) "g equiv"^(-1)`
what is the value of `wedgeCICH_(2)COOH` ?

A

288 `ohm ^(-1) cm^(2)" g equiv"^(-1)`

B

`289.5 ohm ^(-1) cm^(2) "g equiv"^(-1)`

C

`388 ohm ^(-1) "g equiv"^(-1)`

D

`59.5 ohm ^(-1) cm^(2) "equiv"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
According to kohirausch 's law
`wedge_(CICH_(2)COOH)^(infty) =wedge_(CICH_(2)COO^(-))^(infty)+ wedge_(H^(+))^(infty)`
`wedge_(HCI)^(infty) = wedge_(H^(+))^(infty)+wedge_(CI^(-))^(infty)`
=224+203 -38.5
=427 -38.5
`=388.5.5 omega^(1) cm "Sd"^(2) "g equiv"^(-1)`
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