Hitung titik didih dan titik beku larutan berikut : 37 gram Ca(oh)2 dalam 500 gram air pada suhu 27°c

wt = 37 gram
Mr = 74 gram/mol
wp = 500 gram
Kb = 0,52°C
Kf = 1,86°C
Tb = .........................?
Tf = ..........................?

m = wt/Mr x 1000/wp
= 37/74 x 1000/500
= 0,5 x 2
= 1 molal

ΔTb = m.Kb
= 1.0,52
= 0,52°C

Tb = Tb° + ΔTb
= 27 + 0,52
= 27,52°C

ΔTf = m.Kf
= 1.1,86
= 1,86°C

Tf = Tf° - ΔTf
= 27 - 1,86
= 25,14°C