it is (SO4)-2
Ferrous sulphate, or iron (II) sulphate has the formula FeSO4.
The formula for ferrous sulphate is FeSO4.
Ferric sulphate, or iron (III) sulphate has the formula Fe2(SO4)3.
The Chemical Formula for Nickel Sulphate is NiSO4.
Ferrous sulphate is FeSO4 ; Iron (II) sulphate Do NOT confuse with Ferric Sulphate , which is ' Fe2(SO4)3 '; Iron(III) sulphate In Ferrous compounds iron is in Oxid'n state '2' (II). Green in colour In Ferric compounds iron is in Oxid'n state '3' (III). Red/brown in colour. NB THe oxid'n number is ALWAYS quoted in Roman Numerals.
The chemical formula for ferrous sulfate is FeSO4.
The molecular formula for Ammonium Sulphate is (NH4)2SO4.
Anhydrous sodium sulphate is Na2SO4
The formula of the sulphate ion is SO42-
Formula: MgSO4
Formula: FeSO4
the formula is CuSO4