massa molekul relatif Al2O3.4H2O
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massa molekul relatif Al2O3.4H2O
1 Jawaban
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1. Jawaban MentegaTerbang
Ar Al + Ar Ox7 + Ar Hx8
= 27 + 16x7 + 1x8
= 27 + 112 + 8
= 147