The formula for Copper (II) Chromate is CuCrO4.
The copper has a 2+ charge (Cu2+) and the chromate ion has a 2- charge ( (CrO4)2-).
Since the charges balance each other out, therefore, we get CuCrO4.
The formula for cobalt(III) chromate is Co2(CrO4)3.
The formula for gold(III) chromate is Au2(CrO4)3.
The formula for nickel(III) chromate is Ni2(CrO4)3. It consists of two nickel cations (Ni3+) and three chromate anions (CrO4).
If it existed the formula would be Cu2O3
It would be CuF3 but this compound does not exist. Copper(II) fluoride, CuF2 exists, and K3CuF6 exists and contains copper III.
The formula for cobalt(III) chromate is Co2(CrO4)3.
The formula for gold(III) chromate is Au2(CrO4)3.
MnCrO4 is manganese(II) chromate
The formula for nickel(III) chromate is Ni2(CrO4)3. It consists of two nickel cations (Ni3+) and three chromate anions (CrO4).
If it existed the formula would be Cu2O3
That would be chromium(II) sulfate, but really, chromium mostly exists as Cr(III) or Cr(VI), which would change the formula.
Copper(II) chromate can be prepared by reacting a solution of sodium chromate with a solution of copper(II) sulfate. The resulting precipitate is then filtered and dried to obtain solid copper(II) chromate.
Copper (III) doesn't exist; copper(II) arsenide is Cu3As2.
Cesium Chromate = Cs2CrO4
It would be CuF3 but this compound does not exist. Copper(II) fluoride, CuF2 exists, and K3CuF6 exists and contains copper III.
The chemical formula of silver chromate is Ag2CrO4.
Formula: BaCrO4