Practice Problem 11

Use the following standard-state cell potentials to calculate the complex formation equilibrium constant for the Zn(NH₃)₄²⁺ complex ion.

Zn(NH3)42+ + 2 e- Zn + 4 NH3			Eored = -1.04 V
Zn2+ + 2 e- Zn			Eored = -0.7628 V

Answer

2.9 x 10⁹