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ADNAN MUHAMMED

Grade 12,

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molar conductance of Bacl2, H2so4 ,and HCL at infinite dilutions are x1 ,x2 and x3 respect.. equivalent conductance of Baso4 at infinite dilution will be .please solve this immediately ,i’m totally confused on this .

molar conductance of Bacl2, H2so4 ,and HCL  at infinite dilutions are x1 ,x2 and x3 respect.. equivalent conductance of Baso4 at infinite dilution will be .please solve this immediately ,i’m totally confused  on  this .

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2 Answers

Ravleen Kaur
askIITians Faculty 1452 Points
5 years ago
Hello

I have attached image for same.560-1282_30-1.PNG
Arun
25750 Points
5 years ago
dear Nishant
It’s a pretty simple and basic concept oriented question.
But no doubt does confuse people for a long time especially regarding the concept of equivalent and molar conductivity question.
 
the answer may not be exactly apt but should help you enough to get the concept behind it.
 
ANSWER
 
∂= lambda= equivalent conductance ( delta knot)
 
∂BaSO4 = ∂BaCl2 + ∂H2SO4 - ∂2HCl
             = x1 + x2 + – 2x3
∂BaSO4 = 1000 * sp. conductance.
               solubility( in saturated sol.)
 
x1 + x2 – 2x3 = 1000y/ solubility
 
=> solubility BaSO4 = 1000y N                [ N= M/ z factor = M/2]
                                x1+x2-2x3
 
                              = 1000y M
                                 x1+x2-2x3
 
       BaSO4 ------> Ba 2+ + SO4 2- 
ksp (BaSO4)= [Ba 2+][SO4 2-] M^2
                   = 10^6 y^2
                   4(x1+x2-2x3)^2
 
 
Regards
Arun (askIITias forum expert)

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