Jawabanmu

2016-09-17T13:22:31+07:00
ΔTf = m x Kf x i
1,55 = 0,5 x 1,86 x i
i = 5/3

karena elektrolit biner, maka n = 2

i = 1 + α(n-1)
5/3 = 1 + α(2-1)
5/3 = 1 + α

α = 5/3 - 1
α = 5/3 - 3/3
α = 2/3