What is the chemical formula of iron(Ill) sulfide?

1 Answer
Jan 28, 2016

Answer:

#Fe_2S_3#; i.e. an analogue of ferric oxide, #Fe_2O_3#.

Explanation:

See this site.

Sulfur typically has a #-2# oxidation state (it is a Group VI atom, and its redox chemistry follows that of oxygen). And #Fe^(3+)#, ferric ion, has a #+3# oxidation state. We cross multiply and get the given formula.