CoCl3.6NH3→×Cl−⟶AgNO3×AgCl↓ n(AgCl)=x(CoCl3.6NH3) 143.54.78=×267.52.675∴x=3 ∴ The complex is [Co(NH3)6]Cl3
A solution containing 2.675 g of CoCl3.6NH3 (molar mass =267.5 g mol−1 ) is passed through a cation exchanger. The chloride ions obtained in solution were treated with excess of AgNO3 to give 4.78 g of AgCl (molar mass =143.5 g mol−1 ). The formula of the complex is (At. Mass of Ag=108u )
Held on 30 Apr 2010 · Verified 6 Jul 2026.
[Co(NH3)6]Cl3
[CoCl2(NH3)4]Cl
[CoCl3(NH3)3]
[CoCl(NH3)5]Cl2
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