Yes, boil Chromium (III) oxide with Sulphuric acid and get the dark green Chromium (III) sulphate solid on evaporation. Cr2O3 + 3H2SO4 ---> Cr2(SO4)3 + 3H2O
The formula for chromium(III) sulfate is Cr2(SO4)3. The subscript after the parentheses in this formula means that all the atoms inside it occur as many times as the subscript. Therefore, the total...