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m = 3 gram
p = 100 gram
Tb larutan = 100,26 'C
kb = 0,52 'C
Dit: Mr.....?
ΔTb = Tblarutan - Tbpelarut
ΔTb = 100,26 - 100
ΔTb = 0,26
,
ΔTb = kb x m
0,26 = 0,52 x (3/Mr x 1000/100)
0,26 = 0,52 x (30/Mr)
0,26 Mr = 15,6
Mr = 15,6/0,26
Mr = 60
Mr zat tersebut = 60