Oxidation state of Co in [Co(NH3)6]Cl3
- The complex [Co(NH3)6]Cl3 consists of a central cobalt ion coordinated with six ammonia ligands and three chloride ions.
- In order to determine the oxidation state of Co in this complex, we must consider the charges of the ligands and the overall charge of the complex.
- Each ammonia ligand is neutral (NH3), so they do not affect the oxidation state of the central cobalt ion.
- The chloride ions (Cl-) each have a charge of -1, so the three chloride ions contribute a total charge of -3 to the complex.
- The overall charge of the complex is 0, since it is a neutral compound.
- Using the formula:
Total charge = Oxidation state of Co + Total charge from ligands
0 = Oxidation state of Co + (-3)
Oxidation state of Co = +3
- Therefore, the oxidation state of cobalt in [Co(NH3)6]Cl3 is +3.