Coordination Complexes Video Lessons

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Problem: What is the charge on each of the following complex ions?A. tetraaquairon(II), [Fe(H2O)6]?B. tris(carbonato)ferrate(III), [Fe(CO3)3]?C. diaquatetrachlorovanadate, [V(H2O)2Cl4]?

FREE Expert Solution

To calculate the charge on the complex → the oxidation numbers of the species are added.

A. [Fe(H2O)6]?

  • The oxidation number of Fe (the central metal) in the complex is + 2.
  • Water is a neutral ligand and has a zero oxidation number.

Thus, the charge on the complex is calculated as:

Charge of complex=Oxidation number of Fe+6[Oxidation number of H2O]Charge of complex=(+2)+6(0)

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Problem Details

What is the charge on each of the following complex ions?

A. tetraaquairon(II), [Fe(H2O)6]?

B. tris(carbonato)ferrate(III), [Fe(CO3)3]?

C. diaquatetrachlorovanadate, [V(H2O)2Cl4]?

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