ferrate

[Katherine Wu 1H]

Writing the formula of this compound: sodium bisoxalato (diaqua) ferrate (III)
What does ferrate refer to?

[Anna Heckler 2C]

Ferrate is the anion with chemical formula [FeO4]2−

[Cooper Baddley 1F]

Ferrum refers to the latin name for iron and then the compound has an overall negative charge so you add ate to make it ferrate

[Mariepahos4D]

Ferrate is [FeO4]2-. it is a polyatomic anion

[Ryan Chang 1C]

Ferrum refers to the latin name for iron and then the compound has an overall negative charge so you add ate to make it ferrate

Cooper is right in this context. Although ferrate is known as the polyatomic ion [FeO4]2-, in this context, ferrate refers to the metal in the coordination compound molecule. Lavelle told us that when writing the names of negatively charged molecules, we take the latin name for the metal, then replace the last letters with the suffix -ate. In this case, the latin name for iron is ferrum, and when writing the compound, ferrum is turned into ferrate after the suffix -ate is added.