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= (52 : ArM) : (48 : 32)
= (52 : ArM ) : 1.5
karena perbandingannya harus 2 : 3 maka
= ArM harus dibagi agar hasilnya 1
maka
ArM = 52
berarti persen berat S = 100 - 52 = 48%
Ar S x Jumlah S
% S = ________________ x 100%
Mr senyawa
32 x 3
48% = ____________ x 100%
Mr senyawa
96
0,48 = ___________
Mr senyawa
Mr senyawa = 96/0,48
Mr senyawa = 200
Mr senyawa = (Ar M x 2) + (Ar S x 3)
200 = (Ar M x 2) + (32 x 3)
200 - 96 = Ar M x 2
108 = Ar M x 2
Ar M = 104/2
Ar M = 52
Jadi, Ar M adalah 52