The copper(II) ion reacts with phosphate ion to form an insoluble ionic compound, Ksp = 1.40×10–37. The copper(II) ion also forms a complex ion with ammonia, [Cu(NH3)4]2+, Kf = 5.03×1013. what is K?

Answer : The value of 'K' is,

Explanation :

The copper(II) ion reacts with phosphate ion to form an insoluble ionic compound.

(1) The chemical reaction will be:

The copper(II) ion also forms a complex ion with ammonia.

(2) The chemical reaction will be:

To calculate the value of 'K' we are multiplying reaction 2 by 3, we get:

(3)

Now we are adding reaction 1 and 3, we get:

Therefore, the value of 'K' is,

a:

by the combination of an unlimited number of elements