Czy 100g tlenku żelaza(II) zawiera tyle samo żelaza co 120g tlenku żelaza(III)?
mFeO=72u
72g FeO-----56g Fe
100g FeO-----xg Fe
x = 77,8g Fe
mFe2O3=160u
160g Fe2O3------112g Fe
120g Fe2O3-------xg Fe
x = 84g Fe
Więcej żelaza zawiera 120g Fe2O3
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mFeO=72u
72g FeO-----56g Fe
100g FeO-----xg Fe
x = 77,8g Fe
mFe2O3=160u
160g Fe2O3------112g Fe
120g Fe2O3-------xg Fe
x = 84g Fe
Więcej żelaza zawiera 120g Fe2O3