Is NH3 the same as NH3OH?

Question

I have an equation which works with NH3OH but I'm given an aqueous substance which has NH3 in it (Zn(NH3)4 2+). Can i rewrite my substance as Zn(NH3OH)4 2+ or does that change what it is OR do i have to show that the ammonia reacts with water to make NH3OH and then binds with the Zn 2+ etc. thanks for the help.

Answer 1

Favorite Answer

NH3 in water is in the form of NH4OH or NH4+ and OH-

For your case use NH3

I think I follow the problem..

Zn2+ + 1 drop NH3 produces a white gelatinous precipitate

then upon adding more base, the precipitate dissolves

the ammonia is NH3 + H2O = NH4OH

For the first drop of NH3, this is what happens:

Zn2+ + NH4OH = Zn(OH)2 (s) + NH4+

upon adding excess NH3, NH3 reacts itself

Zn(OH)2 + 4NH3 = Zn(NH3)4 2+ (aq) + 2OH- OR

Zn2+ + 4NH3 = Zn(NH3)4 2+ (aq)

The NH3 produces a coordination complex with Zn2+

Zn(NH3)4 2+ = tetraammine zinc (II)

Answer 2

No. NH3 is ammonia gas. Dissolved in water, it makes ammonium hydroxide, NH4OH. Since NH4 is positively charged, I would not expect it to associate with zinc, which would also be positively charged.

Answer 3

For the best answers, search on this site https://shorturl.im/dp6GJ

-Cu(NO3)2(aq)+2NaOH(aq)===____(aq)+____(... -______(s)=====CuO(s)+H20(g) -LiO(s)+H2SO4(aq)====_____(aq)+_____(l... -______(aq)+Zn(s)======Cu(s)+ZnSO4(aq) -Zn(s)+H2S)4(aq)====______(aq)+_____(g... = kaa-boom! haha i don't know the correct equation, got prob with math and algebra.

Answer 4

its not the same, as the rest of it you lost me.