Formula of Haematite is `Fe_(3)O_(4)`

The composition of a sample of Wustite is Fe_(0.93)O_(1.00) . What fraction of iron is present in the from of Fe^(2+) ion ?

Out of haematite (Fe_(2)O_(3)) and iron pyrites (FeS_(2)) , which one is the ore of iron ?

State whether True or False: Formula of Ferric Oxide is Fe_2O .

Write the formula of Haematite.

The actual formula derived from the analysis of a sample of ferrous oxide is Fe_(0.93)O_(1.00) . What fraction of iron in this sample does exist in the form of Fe^(2+) ions?

The composition of a sample of wustite is Fe_(0.93)O_1 . What percentage of the iron is present in the form of Fe(III)?

Equal quantities of electricity are passed through 3 voltameters containing FeSO_4 , Fe_2(SO_4)_3 and Fe(NO_3)_3 Consider the following statements : (1) The amounts of iron deposited in FeSO_4 and Fe_(2)(SO_(4))_3 are equal. (2) The amount of iron deposited in Fe(NO_(3))_(3) , is 2//3^(rd) of the amount deposited in FeSO_4 (3) The amount of iron deposited in Fe_2(SO_4), and Fe(NO_3)_3 , are equal

What are the oxidation number of the underline elements in each of the following and how do your rationalise your results underline (Fe_(3))O_(4)

Detemine the equivalent mass of Fe _(2)O_(4) in the given reaction : Fe_(2)O_(4)+KmnO_(4)toFe_(2)O_(3)+MnO_(2) (Assume that the molecular mass of Fe_(3)O_(4)=M ]

Which of the following ores cannot be concentrated by electromagnetic separation? Chromite (FeCr_(2)O_(4)), magnetite (Fe_(3)O_(4)) , zinc blende (ZnS) , pyrolusite (MnO_(2)) .