Jawabanmu

2014-07-19T15:15:50+07:00
Anggap volume larutan 100 gram
grC2H5OH = 46/100 x 100 gram = 46 gram
massa air(p) = 100 - 46 = 54
m = 1000/p x gr/mr
    = 1000/ 54 x 46/46
    = 18,51 m
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