Coordination CompoundHard
Question
What is the ratio of uncomplexed to complexed Zn2+ ion in a solution that is 10 M in NH3, if the stability constant of [Zn(NH3)4]2+ is 3 × 109 ?
Options
A.3.3 × 10-9
B.3.3 × 10-11
C.3.3 × 10-14
D.3 × 10-13
Solution
Zn2+ + 4NH3 ⇋ [Zn(NH3)4]2+.
Kf =
⇒ 
= Kf[NH3]4.
= 3 × 109 × 104 = 3 × 1013.
⇒
= 3.3 × 10-14.
Kf =
⇒ = Kf[NH3]4.= 3 × 109 × 104 = 3 × 1013.
⇒
= 3.3 × 10-14.Create a free account to view solution
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