berapa persentase berat besi dalam FeO? (Ar Fe=56, O=16)

Stoikiometri
Kelas10

Mr = 56+16 = 72

Persentase Fe
= 56/72 x 100%
= 77,78%

% besi (Fe) = (Ar besi : Mr FeO) 100%
= (56 : (56+16)) 100%
= (56 : 72) 100%
= 77,78%