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if alpha is the degree of dissociation o...

if `alpha` is the degree of dissociation of `Na_2SO_4` , the vant Hoff's factor (i) used for calculating the molecular mass is

A

`1+alpha`

B

`1-alpha`

C

`1+2 alpha`

D

`1-2alpha`

Text Solution

Verified by Experts

`Na_(2)SO_(4) +2Na^(+)+SO_(4)^(2-)`
`1- alpha" "2alpha" "alpha`
`i=(1-alpha)+2alpha=1+2alpha`
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