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lambda(ClCH(2)COONa)=224 "ohm"^(-1) cm^(...

`lambda_(ClCH_(2)COONa)=224 "ohm"^(-1) cm^(2) " gm eq"^(-1)`,
`lambda_(NaCl)=38.2 "ohm"^(-1) "cm"^(2) gm eq"^(-1)`.
`lambda_(HCl)=203 "ohm"^(-1) cm^(2) "gm eq"^(-1)`.
What is the value of `lambda_(ClCH_(2)COOH)` ?

A

288.5 `ohm^(-1)cm^(2)gmeq^(-1)`

B

289.5 `ohm^(-1)cm^(2)gmeq^(-1)`

C

`388.8ohm^(-1)cm^(2)gmeq^(-1)`

D

59.5 `ohm^(-1)cm^(2)gmeq^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
`ClCH_(3)COONa+HCltoClCH_(3)COOH+NaCl`
`lamda_(ClCH_(3)COONa)+lamda_(HCl)=lamda_(CiCH_(2)COOH)+lamda_(NaCl)` ltBrgt `224+203=lamda_(ClCH_(2)COOH)+38.2`
`lamda_(ClCH_(3)COOH)=427-38.2=388.8ohm^(-1)cm^(2)gmeq^(-1)`.
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