So far as I know, there is only one such formula: SO4-2.
The chemical formula for Calcium Sulfate is CaSO4
The chemical formula for copper(ll) sulfate is CuSO4.
The chemical formula for sodium sulfate is Na2SO4.
The chemical formula is... Fe2S3
Copper sulfate has the chemical formula CuSO4.
The chemical formula for lithium sulfate is Li2SO4.
The chemical formula for magnesium sulfate is MgSO4.
The chemical formula for ammonium sulfate is (NH4)2SO4.
Borin is B3+ and Sulfate is SO42- The chemical formula for the both would be B2(SO4)3
The chemical formula for tin(II) sulfate is SnSO4.
The chemical formula for iron(II) sulfate is FeSO4.
The chemical formula for calcium sulfate is CaSO4.