Chromium (Iii) Sulfate Formula

The chemical formula for chromium (III) sulfate is Cr2(SO4)3. This indicates that each molecule of chromium (III) sulfate contains two atoms of chromium, denoted by the symbol Cr, and three sulfate ions, denoted by the formula SO4. The Roman numeral III in the name chromium (III) indicates the oxidation state of the chromium ion, which is +3.

In this compound, each chromium atom is surrounded by six sulfate ions, with each sulfate ion sharing two oxygen atoms with adjacent sulfate ions to form a complex polyatomic ion. The sulfate ions serve as ligands, or molecules that donate electrons to the central chromium atom, in a coordination complex.

Chromium (III) sulfate is a hydrated compound, meaning it contains water molecules within its crystal structure. The most common form of the compound is the dodecahydrate, which has the chemical formula Cr2(SO4)3 · 12H2O. This means that for every two chromium atoms, there are three sulfate ions and twelve water molecules in the compound.