Answer to Question #111152 in General Chemistry for mya 21

Question

Copper(I) ions in aqueous solution react with NH3(aq) according to

Cu+(aq)+2NH3(aq)⟶Cu(NH3)+2(aq)

Answer 1

A light yellow ammonia complex Cu (I) is formed when

dissolution in a concentrated solution of ammonia of halides and copper oxide (I):

CuCl +2NH3⋅H2O → [Cu(NH3)2]Cl + 2Н2О

Сu⁺+CL^-++2NH3⋅H2O →Cu(NH3)²⁺+Cl^--+2Н2О

Сu⁺+2NH3⋅H2O →Cu(NH3)²⁺+2Н2О

Cu2O + 4NH3⋅H2O → 2[Cu(NH3)2]ОН + 2Н2О

This copper (I) complex is unstable and oxidizes in air to [Cu (NH3) 4]

2 + bright blue