Jawabanmu

2014-08-26T20:35:50+07:00
Dik : P° = 30 mmHg
        m = 2 molal
Dtny : P ...?
Jwb :

# 2 molal ⇒ dapat diketahui terdapat 2 mol t & 1 kg p
2 mol t = gr/Mr
gr = 2 x 180 = 360 gram glukosa

P = Xp.P° = [ (1000/18) / ( 1000/18 +360/180 ) ] x 30
    = [55,5/ (55,5 + 2) ] 30 = 28,9 mmHg ∞ 29 mmHg
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