Write a chemical equation for the following rxns.?

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Write a chemical equation for the following rxns.?

(1) AgCl(s) + NH3 (aq)

(2) Hg2Cl2(s) + NH3(aq)

& please explain how adding aqueous NH3 to the combined AgCl-Hg2Cl2 precipitate effects the seperation of the two cations.

2007-05-01 05:10:52 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

AgCl dissolves in NH3, producing Diammine silver (I) complex, to form a colorless, transparent soln.

AgCl + 2NH3 = [Ag(NH3)2]Cl

Hg2Cl2 reacts with NH3 to form black Hg metal and HgNH2Cl.

Hg2Cl2 + NH3 ==> Hg↓ + HgNH2Cl + HCl

ppt of black Hg occurs, & thus the two ions are separated.

2007-05-01 05:34:46 · answer #1 · answered by s0u1 reaver 5 · 0⤊ 0⤋

AgCl is soluble in ammonia. The other substance is not.

AgCl + 2NH3 ----> [Ag(NH3)2]+ + Cl-

2007-05-01 12:14:47 · answer #2 · answered by Gervald F 7 · 0⤊ 0⤋