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Al(MnO4)3 atau Al2(MnO4)3
Al=27
Mn=55
O=16
Al(MnO4)3
27+(55x3)+(16x12)
=384
Al2(MnO4)3
(27x2)+(55x3)+(16x12)
=411
CH3CH2OH
C=12x2=24
H=1x6=6
O=16
Total=46