[RHSLilSweetie07]

Please help me name write chemical formulas for each of the following problems:

1. ammonium sulfantimonite (has "ortho" form and is "trithio"). I'm not sure what "sulfantimonite" is.

2. barium ferrate (has one Fe atom which possesses twice its normal highest valence).
I thought that it might be BaFeO₄, but does the note affect the formula?

3. sodium monohydrogen thioarsenite hexahydrate.
I'm not sure how to write these long formulas.

4. potassium ammonium monohydrogen hypothiobismuthite heptahydrate.
Same as above.

5. ferrocobaltinickelous diammonium monohydrogen hypdithiophosphite dodecahydrate.
Same again.

Please help, even if you can only help with one or two. I'd really appreciate any help.

Thanks

[ATMyller]

1. Sulfantimonite is mostly likely sulphur antimonite. Antimonite is Sb₂S₃

2. Normal highest valence would probably pointing towards Ferrate(III). So you'll need the Barium ferrate(VI) complex which happens to be BaFeO₄.

3. It's a metal comlex with sodium center, single hydrogen ligand (monohydrogen), thioarsenite ligand (AsH₃O₂S^3-) and seven water ligands (heptahydrate).

4. Same as above except the center is potassium and ligands are a bit diffrent. hypothio is HSO^- and bismuthite is Bi₂S₃

5. This is a bit nasty one. A trinuclear metal complex with Fe, Co and Ni centers. Dihypothio is S₂O₂^- and phosphite is PO₃^3-. These should give enough clue to balange it out using the 18 electron rule.