Find the total number of moles of donor atoms present in one mole trioxalatocobaltate(III) ion.

Step-by-step solution

In [ Co ( C ₂ O ₄ )₃ ]³⁻ , three oxalate ligands are attached to the cobalt ion. Since oxalate is a bidentate ligand, each ( C ₂ O ₄ )²⁻ has two donor oxygen atoms. 1 mole of ( C ₂ O ₄ )²⁻ 2 moles of donor atoms. 1 mole of [ Co ( C ₂ O ₄ )₃ ]³⁻ 3 2=6 moles of donor atoms.