$ {Ag+ + NH3 <=> [Ag(NH3)]+;}$ $k_1 = 6.8 \times 10^{-3}$
$ {[Ag(NH3)]+ + NH3 <=> [Ag(NH3)2]+ ;}$ $k_2 = 1.6 \times 10^{-3}$
then the formation constant of the complex $[Ag(NH_3)_2]^+$ is
- $1.08 \times 10^{-7}$
- $1.08 \times 10^{-5}$
- $1.08 \times 10^{-9}$
- none of thee
The Correct Option is B
Solution and Explanation
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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.