1.

A decimolar solution of potassium ferrocyanlde K_(4) [Fe(CN)_(6)] is 50% dissociated at 3001K. Calculate the value of Van't Hoff factor for postuslum ferrocyanide.

Answer»

Solution :Vant HOFF factor `"" (i) = ("Normal MOLAR MASS ")/("Abnormal molar mass") `
`alpha = (i-1)/(n-1)`
`(50)/(100) = (i-1)/(5-1)`
`i-1 = 4 XX 0.5 `
`i-1 = 2`
i=3


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