diketahui massa atom relatif (Ar) O=16 ,Al =27 ,dan S=32. hitunglah massa molekul relatif (Mr) Al2(SO4)3!
Kimia
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Pertanyaan
diketahui massa atom relatif (Ar) O=16 ,Al =27 ,dan S=32. hitunglah massa molekul relatif (Mr) Al2(SO4)3!
2 Jawaban
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1. Jawaban ullygultom
2 x 27 = 54 -> Al2
3 × 32 = 96 -> S3
12 × 16 = 192 -> O12
Mr = 54 + 96 + 192 = 150 + 192 = 342 -
2. Jawaban RahmatDarmaraga
Mr Al2(SO4)3
= 2 x Ar Al + 3 x Ar S + 12 x Ar O
= 54 + 96 + 192
= 342