For the reaction given below:
\(CoCl_3.xNH_3 + AgNO_3 (aq) →\)
If two equivalents of AgCl precipitate out, then the value of x will be____.
For the reaction given below:
\(CoCl_3.xNH_3 + AgNO_3 (aq) →\)
If two equivalents of AgCl precipitate out, then the value of x will be____.
Correct Answer: 5
Solution and Explanation
The correct answer is 5
\(COCl_3 xNH3 + AgNO_3(ag) → AgCl ↓\)
2 mol
Two equivalents of AgCl precipitates out, which symbolises that there are two free Clions. The coordination number of Co is six. So, the ligands inside the coordination sphere should be six. Hence, the complex should be \([Co(NH_3)_5Cl]Cl_2.\)
\([CO(NH_3)_5Cl] Cl_2 + AgNO_3 → AgCl↓\)
2 mol
Hence, the value of x is 5.
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Concepts Used:
Coordination Compounds
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
Coordination entity:
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
Ligands:
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.