Jawabanmu

Jawaban paling cerdas!
2014-08-26T20:44:07+07:00
Dik : RE = CH2O
        gr t = 72 gr
        gr p = 400 gr
        Tf = -1,86 ⇒ ΔTf = 1,86
        Kf air = 1,86
Dty : RM ..?
Jwb :
ΔTf = m Kf
1,86 = (72/Mr)(1000/400) 1,86
Mr = 72 x 1000 / 400 = 180

RM = (RE)n

(RE)n = Mr
(CH2O)n = 180
30 n = 180
n 6

RM = (CH2O)6 = C6H12O6

5 3 5