To synthesize the coordination compound [Co NH3 6]Cl3, also known as hexaamminecobalt III chloride, you can follow these steps:1. Preparation of starting materials:a. Cobalt II chloride hexahydrate CoCl26H2O : This can be purchased from a chemical supplier or prepared by dissolving cobalt metal in hydrochloric acid and evaporating the solution to obtain the hydrated salt.b. Ammonia solution NH3 : A concentrated ammonia solution 25-30% can be purchased from a chemical supplier.2. Synthesis of [Co NH3 6]Cl3:a. Dissolve an appropriate amount of CoCl26H2O in distilled water to make a 0.1 M solution.b. Slowly add the concentrated ammonia solution to the cobalt II chloride solution with constant stirring. The solution will initially turn pink due to the formation of [Co NH3 4 H2O 2]Cl2.c. Continue adding ammonia until the solution turns dark brown, indicating the formation of [Co NH3 6]Cl3. The reaction can be represented as:CoCl26H2O + 6 NH3 [Co NH3 6]Cl3 + 6 H2O3. Isolation and purification:a. Allow the reaction mixture to stand undisturbed for a few hours. Dark brown crystals of [Co NH3 6]Cl3 will precipitate out of the solution.b. Filter the crystals using a Buchner funnel and wash them with a small amount of cold distilled water to remove any remaining impurities.c. Dry the crystals in a desiccator or an oven at a low temperature 40-50C to remove any residual water.4. Characterization of [Co NH3 6]Cl3:a. Elemental analysis: Determine the percentage of cobalt, nitrogen, and chlorine in the sample to confirm the composition of the compound.b. Infrared IR spectroscopy: The presence of NH3 ligands can be confirmed by the characteristic N-H stretching vibrations in the IR spectrum.c. Ultraviolet-visible UV-Vis spectroscopy: The electronic transitions in the compound can be studied using UV-Vis spectroscopy, which can provide information about the geometry and oxidation state of the cobalt ion.d. X-ray crystallography: The crystal structure of the compound can be determined by X-ray diffraction, which can provide information about the coordination environment of the cobalt ion and the arrangement of the ligands.By following these steps, you can synthesize and characterize the coordination compound [Co NH3 6]Cl3 in the laboratory.