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In a solvent 50% of an acid HA dimerizes...

In a solvent 50% of an acid HA dimerizes and the rest dissociates. The van't Hoff factor of the acid is ___________` xx 10 ^(-2).`
(Round off to the nearest integer)
(Round off to the nearest integer)

Text Solution

Verified by Experts

The correct Answer is:
125
`2HAhArrH_2A_2" " HAhArrH^(+)+A`
`{:("Initial moles",axx50/100,0,axx500/100,0,0),("Final moles",0,0.25a,0,0.5a,0.5a):}`
Now, `i=("final moles")/("initial moles")= (0.25a +0.5a+0.5a)/(0.5a+0.5a)`
`=1.25 = 125 xx10^(-2)`
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