Write out two balanced reactions that summarize the formation of [Cu(NH3)4]2+ and [Ni(NH3)4]2+ in your experiment.

Question

I had written this two equations, however, I would just like to know if they are correct

[Cu(H₂O)₄]²⁺(aq) + 8 NH₃(aq) à[Cu(NH₃)⁴]²⁺ + 8 H₂O (l)

Ni + 4NH₃ → Ni(NH₃)⁴

What change occurred when H₂O was added to your solution? Explain this change using Le Châtlier’s Principle.(The solution in question is [Co (H₂O)⁶]²⁺ (aq) 4 Cl^-(aq) à [(CoCl)₄]^2-(aq) + 6 H₂O(g)).

How does HCl affect the formation of [Cu(NH3)4]2+ and [Ni(NH3)4]+?

Answer 1

[Cu(H₂O)₄]²⁺ + 4NH₃ <----> [Cu(NH₃)₄]²⁺ + 4H₂O Not sure why you chose 8 NH3 and 8H2O

Similar equation for production of the [Ni(NH3)4]2+ complex ion