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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

`1-2alpha`

D

`1+2alpha`

Text Solution

Verified by Experts

The correct Answer is:
D
`i=1 - prop +3 prop = 1+2 prop`
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