Part A What is the coordination number for each of the following complexes? [Co(

Question

Part A

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

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

[Cr(EDTA)]

[Pt(NH3)4]2+

Na[Au(CN)2]

Enter the coordination numbers, in the order that the complexes are listed, as four integers separated by commas (e.g., 1,2,3,4).

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

hexaaquairon(II), [Fe(H2O)6]?

tris(carbonato)aluminate(III), [Al(CO3)3]?

amminepentachloroplatinate(IV), [Pt(NH3)Cl5]?

Express the charges numerically, in the order that the complexes are listed, separated by commas. For a nonzero charge, be sure to include the sign (e.g., +1,-2,+3).

Explanation / Answer

Part A

coordination number for each of the following complexes are   6 , 6 , 4 , 2

[Co(NH3)4(H2O)2]3+      ---------- 6

[Cr(EDTA)]   ---------   6

[Pt(NH3)4]2+ ---------- 4

Na[Au(CN)2]   ----------- 2

2) the charge on each of the following complex ions +2 ,-3 , -1

hexaaquairon(II), [Fe(H2O)6]   ----------- +2

tris(carbonato)aluminate(III), [Al(CO3)3] ---------- -3

amminepentachloroplatinate(IV), [Pt(NH3)Cl5] --------- -1

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