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Chemistry20272 marksShort answerCoordination CompoundsTool: Coordination complex analyser

Answer the following.

A coordination compound CoCl₃·4H₂O precipitates silver chloride when treated with silver nitrate…

A coordination compound $\text{CoCl}_3\cdot4\text{H}_2\text{O}$ precipitates silver chloride when treated with silver nitrate. The molar conductance of its solution corresponds to a total of two ions. Write the structural formula of the compound and name it.

Answer

Answer

Official answer key
Structural formula: $[\mathrm{Co(H_2O)_4Cl_2}]\mathrm{Cl}$. It precipitates AgCl because one $\mathrm{Cl^-}$ is outside the coordination sphere, and gives two ions ($[\mathrm{Co(H_2O)_4Cl_2}]^+$ and $\mathrm{Cl^-}$) in solution. IUPAC name: tetraaquadichloridocobalt(III) chloride.