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The degree of dissociation for K(4)[Fe(C...

The degree of dissociation for `K_(4)[Fe(CN)_(6)]` is `60%`. Calculate the Van't Hoff factor.

Text Solution

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Total moles=`1-alpha+4alpha+alpha=1+4alpha`
`i="Total moles at equilibrium"/"Initial moles" =(1+4alpha)/(1)=1+4 xx 0.6 =3.4`
Alternative method
`i="Number of ions" xx alpha)+(1-alpha)`
`=5xx0.6 + (1-0.6)`
`=3.0 + 0.4 = 3.4`
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