Which statement about iron(III) sulfate is not correct?
It reacts with aqueous barium nitrate to form a white precipitate.
It has the chemical formula Fe3(SO4)2Fe_3(SO_4)_2Fe3(SO4)2.
It can be prepared by reacting iron(III) hydroxide with dilute sulfuric acid.
It reacts with aqueous sodium hydroxide to form a red-brown precipitate.
