Jawabanmu

2014-05-27T21:30:57+07:00
N               =14
4 H = 4 x 1 =4
(NH4)2 = (14+4)x2 = 38

S            =32
4O=4x16=64

Mr= 38+64 =102
2014-05-27T21:32:30+07:00
(14 + 4).2 = 36
36 + 32 + 64 = 132
N =14 H = 4 x 1 =4
(NH4)2 = (14+4)x2 = 38

S =32
4O=4x16=64

Mr= 38+64 =102
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