The correct question is
Give the coordination number, the charge of the central metal ion, and select the correct name in each coordination compound:
Na3[CoCl6]
[Ni(CO)4]
[Ni(NH3)3(H2O)2] (NO3)2
Answer:
See explanation for details
Explanation:
Na3[CoCl6]
Name: Sodium hexacholorocobalt III
Charge on the complex: -3
Central metal ion name : cobalt III
coordination number: 6
[Ni(CO)4]
Name: tetracarbonyl nickel (0)
Charge on the complex: 0
Central metal ion name : nickel (0)
coordination number: 4
[Ni(NH3)3(H2O)2] (NO3)2
Name: Diaquatriaminenickel II nitrate
Charge on the complex: +2
Central metal ion name : nickel (+2)
coordination number: 5
Answer:
Cordination number = [tex]6[/tex]
Charge = [tex]+3[/tex]
Name = [tex]Sodium hexachlorocobaltate III[/tex]
Cordination number = [tex]4[/tex]
Charge = [tex]0[/tex]
Name = [tex]Tetracarbonyl Nickel 0[/tex]
Cordination number = [tex]5[/tex]
Charge = [tex]+2[/tex]
Name = [tex]DiaquatriamineNickel II Nitrate[/tex]
Explanation:
A. [tex]Na_3[CoCl_6][/tex]
Central metal atom is Cobalt
There are three Sodium cations
There are six chloride ligands
The oxidation number,
[tex]= x - (6*1) + 3 =0\\\\x = +3[/tex]
B. [tex][Ni(CO)_4][/tex]
Central metal atom is Nickel
There are four Carbon Monoxide (0) ligands
The oxidation number,
[tex]= x + (4*0) = 0\\\\x = 0[/tex]
C. [tex][Ni(NH_3)_3(H_2O)_3] (NO_3)_2[/tex]
Central metal atom is Nickel
There are two Nitrate (-1) anions
There are threee ammonia (0) ligands
There are two water (0) ligand also
oxidation number,
[tex]x - (2*1) + (3*0) + (2*0) = 0\\\\x = +2[/tex]
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