The chemical formula Mn2(SO4)3 represents the compound manganese(III) sulfate. One molecule of manganese(III) sulfate contains two atoms of manganese, three atoms of sulfur and 12 atoms of oxygen.
Manganese(III) sulfate has a molar mass of about 398.06 grams per mole. It is composed of the ion manganese(III), which is an atom of manganese with a charge of +3, and an ion of sulfate, which contains one atom of sulfur and four atoms of oxygen with a total charge of -2. When the two ions combine, the total number of each ion in the final molecule is determined by those charges for a total molecular charge of zero.