Questions/Coordination Compounds/In the complex $$Co...
Introduction & Werner's TheoryCoordination Compounds

In the complex CoCl34NH3CoCl_3 \cdot 4NH_3 , precipitation with AgNO3AgNO_3 yields only 1 mole of AgClAgCl . What is the secondary valency of Co?

Expert Answer

  1. The formula is [Co(NH3)4Cl2]Cl[Co(NH_3)_4Cl_2]Cl . 4 NH3NH_3 + 2 ClCl satisfy the secondary valency (6), and 1 ClCl is outside (primary).

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