[Borek]

What will happen if you add ammonia solution to the copper sulfate solution?

What will happen if you add ammonia to the silver nitrate solution?






Please don't "show your work" me This is a serious question that I need to be answered by as many people as possible - I will explain details later.

[Wolfram]

1.)Ammonia reacts with copper (II) sulfate to form blue precipitate, which is copper II hydroxide. Solution color turns bluish color because of copper ammonium ion complex.

2.) Ammonia reacts with Ag+  to produce a complex. Forms yellowish precipitate..i did this many times with KI solution in testing for cyanide concentrations in plating solutions

[Alberto_Kravina]

copper ammonium ion complex.

Not really! it i a copper tetrammine complex, the ligand is not NH₄⁺ but NH₃.

Ammonia reacts with copper sulfate to form bluish copper(II)hydroxide. This precipitate is soluble in excess ammonia as a deep-blue tetrammine complex:

CuSO₄ + 2 NH₄OH --------> Cu(OH)_2(s) +(NH₄)₂SO₄

Cu(OH)₂ + 4 NH₄OH ---> [Cu(NH₃)₄ ] ²⁺ + 2 OH^- + 4 H₂O

2.) Ammonia reacts with Ag+  to produce a complex

Not really, first it forms a brown precipitate (silver oxide) that is soluble in excess ammonia as a colorless diammine complex:

2 AgNO₃ + 2 NH₄OH ---> Ag_2(s)O + H₂O + 2 NH₄NO₃

Ag₂O + 4 NH₄OH ---> 2 [ Ag(NH₃)₂ ]OH + 3 H₂O

[Albert]

Cu2+ + 4NH4OH -> [Cu(NH3)4]2+ + 4H2O  

Ag+ + 2NH4OH -> [Ag(NH3)2]+ + 2H2O