A confusion about conductance of weak electrolytes

[nafisanazlee]

Homework Statement

The equivalent conductance of weak monobasic acid at infinite dilution is 388.5 ohm^-¹ cm² equiv-¹ at 25 %C. Find the specific conductance of 0.1 molar solutions. the degree of dissociation of which is 6%.

Relevant Equations

Λe/Λe∞ = α

My attempt is the handwritten one. But my reference book solved it in a different way, they left a note saying at infinite dilution α = 1(100%). (the attached picture) Which one is the correct approach?

 

[mjc123]

Can't see a handwritten attempt, or a note to that effect in the attached picture. Please clarify the two approaches.

 

[Borek]

Book doesn't use information about 6%, which makes me doubt the solution, even without checking details.

 

[nafisanazlee]

Can't see a handwritten attempt, or a note to that effect in the attached picture. Please clarify the two approaches.

I am sorry, didn't notice that it didn't got uploaded. Here it is.

 

[nafisanazlee]

Book doesn't use information about 6%, which makes me doubt the solution, even without checking details.

Book doesn't use information about 6%, which makes me doubt the solution, even without checking details.

This is my solution, I'm sorry that it didn't got posted earlier.

 

[et_al]

I think your result is correct.

 

[nafisanazlee]

I think your result is correct.

Thanks so much.