Problem: What is the coordination number for each of the following complexes?A. [Co(NH3)4(H2O)2]3+B. [Cr(EDTA)]-C. [Pt(NH3)4]2+D. Na[Ag(CN)2]

FREE Expert Solution

Let’s identify the ligands present in each coordination compound.

a. [Co(NH3)4(H2O)2]3+ 

Ligands:

4 NH3

          NH3 is monodentate → there is 1 atom attached for each NH3

          4 (NH3) x 1 (atoms each) = 4 attachments

2 H2O

          H2O is monodentate → there is 1 atom attached for each H2O

          2 (H2O) x 1 (atoms each) = 2 attachments

• 4 NH3 + 2 H2O → 6 attachments

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Problem Details

What is the coordination number for each of the following complexes?

A. [Co(NH3)4(H2O)2]3+

B. [Cr(EDTA)]-

C. [Pt(NH3)4]2+

D. Na[Ag(CN)2]

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