Question

Aqueous solutions of a compound did not form precipitates with cl-, br-, i-, so42-, co32-, po43-, oh-, or s2-. this highly water-soluble compound produced the foul-smelling gas h2s when the solution was acidified. this compound is ________.

Answer 1

Answer;

(NH4)2S

Explanation;

• Ammonium sulphide, (NH4)2S, is an unstable compound, and in aqueous solution it exists as ammonia (NH4OH) and ammonium hydrosulphide, NH4HS.
• it is a highly water-soluble compound and produces the foul-smelling gas h2s when the solution is acidified.
• The anions; cl-, br-, i-, so42-, co32-, po43-, oh-, or s2- are not precipitated by (NH4)2S, but are precipitated by salts such as barium and silver nitrate.