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Physical Chemistry

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8 Jul 2009 20:52:05 IST

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is kohlraush law depends on no. of moles like ^bacl2=^ba++ + 2^cl- so is there any role of '2' of

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is kohlraush law depends on no. of moles like^bacl2=^ba++ + 2^cl-so is there any role of '2' of cl-

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akki ~~ unlucky forever ~~

Blazing goIITian

Joined: 11 May 2008

Posts: 491

8 Jul 2009 22:25:44 IST

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see,

if u r writing the law in terms of molar conductivity then,

/\_m⁰(BaCl₂) = /\_m⁰Ba⁺² + 2 /\_m⁰Cl ^-

if u r writing the law in terms of equivalent conductivity then,

/\_eq.⁰(BaCl₂) = /\_eq.⁰Ba⁺² + /\_eq.⁰Cl ^-

Hope u got it . . .

Krishna Gopal Singh

Forum Expert

Joined: 29 Dec 2006

Posts: 5153

10 Jul 2009 09:54:12 IST

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Yes in molar conductivity that '2' is very important. If you are usng BaCl2 you must remember that no matter how dilute the solution is, the concentration of Cl- is double that of Ba2+.

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