For the coordination compound [Cr(NH₃)₃(H₂O)₃]Cl₃, identify, in order, the charge on the complex ion, the oxidation state of the metal, and the coordination number of the metal. A)3+, 1+, 6 B)0, 0, 6 C)3+, 3+, 4 D)1+, 3+, 6 E)3+, 3+, 6

Question

Quizplus · Accepted Answer

The presence of Cl- indicates that the complex ion has a positive charge to balance the negative charge of the Cl-. The overall charge is +3, as there are three Cl- ions. The oxidation state of Cr can be determined by considering the charges of the ligands and the overall charge of the complex. Each ₃ and O ligand is a donor of two electrons, while NH₃ is a neutral ligand. The total charge donated by the ligands is -4 (4₃ and 1O), so the Cr ion has an oxidation state of +3 to balance the overall charge of the complex. The coordination number can be determined by counting the number of donor atoms surrounding the central metal ion. In this case, there are six, four from ₃ ligands and two from the NH₃ ligand. Therefore, the coordination number is 6.

For the Coordination Compound [Cr(NH3)3(H2O)3]Cl3, Identify, in Order, the Charge

For the Coordination Compound [Cr(NH₃)₃(H₂O)₃]Cl₃, Identify, in Order, the Charge