A aqueous solution of
freezes at
. Calculate the percentage of dissociation. [Given :
for Water
]
ΔTf = i(Kf)m
0.068 = i x 1.86 x 0.01
i = 3.65 or 3.656
α = i-1/n-1
α = 0.883 or 0.885
Hence percentage of dissociation is 88.3% or 88.5%