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Find pK if K is the overall complex diss...

Find pK if K is the overall complex dissociation equilibrium constant for `[Cu(NH_(3))_(4)]^(2+)` ion, given that `beta_(4)` for this complex is `2.0xx10^(13)` :

A

13.3

B

12.7

C

13.7

D

12.3

Text Solution

Verified by Experts

The correct Answer is:
A
`K=(1)/(beta_(4))=(1)/(2)xx10^(-13)`
`pk=-log K=13+log 2=13.3`
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