CrSO4
Ferrous sulphate, or iron (II) sulphate has the formula FeSO4.
The molecular formula for Ammonium Sulphate is (NH4)2SO4.
Chromium(III) Sulphate is Cr2(SO4)3 . Chromium(II) Sulphate (much rarer) is CrSO4
Ferric sulphate, or iron (III) sulphate has the formula Fe2(SO4)3.
Cr2(SO4)3
Chromium VI sulphate Cr(SO4)3
Chromium is a metal. It is located in the 4th period of the periodic table. It is the element with the chemical abbreviation Cr.
Calcium forms divalent cations and sulphate forms divalent anions. Therefore, the formula unit contains only one of each ion and has the formula CaSO4.
Iron(II) sulphate Chemical formula is FeSO4 The molecular weight is 151,908 g (for the anhydrous salt)
The chemical formula of sodium sulfate is Na2SO4.
CrO is the formula for chromium(II) oxide. Cr is the elemental symbol for chrome, and O represents oxygen. The molecular weight of CrO is 68.00 grams/per mole using two significant figures. Variants of CrO include II, III and VI.
The molecular formula for chromous hydroxide is Cr(OH)2. In this compound, chromium has a +2 oxidation state and forms a compound with hydroxide ions.