An unknown mixture of ions was treated with hydrochloric acid resulting in a white precipitate and a colorless solution. The precipitate did not change after addition of hot water but did disappear after addition of ammonium hydroxide. After acidification with nitric acid, the white precipitate reappeared. The colorless solution was treated with thioacetamide and hydrochloric acid resulting in the formation of a dark precipitate. The precipitate was treated with nitric acid resulting in a black precipitate and blue solution. The blue solution was treated with sulfuric acid and ammonium hydroxide without changing. After addition of sodium thiosulfate, a reddish-brown precipitate appeared. Determine which ions were present in the unknown mixture. Select all which apply. An unknown mixture of ions was treated with hydrochloric acid resulting in a white precipitate and a colorless solution. The precipitate did not change after addition of hot water but did disappear after addition of ammonium hydroxide. After acidification with nitric acid, the white precipitate reappeared. The colorless solution was treated with thioacetamide and hydrochloric acid resulting in the formation of a dark precipitate. The precipitate was treated with nitric acid resulting in a black precipitate and blue solution. The blue solution was treated with sulfuric acid and ammonium hydroxide without changing. After addition of sodium thiosulfate, a reddish-brown precipitate appeared. Determine which ions were present in the unknown mixture. Select all which apply Ag HgHE22 Bi3+ Cu2+ Cd2 Solution Pb 2+ ion is reacts with Hcl gives Pbcl 2 which is white colour precipitate.Pbcl 2 is insoluble in water.PbCl2 is insoluble in hot water .but addition of NH4OH in the solution ti get sollubalized. After acidifying this solution the PbNO3 COMPLEX is formed which is black in colour. .

1. An unknown mixture of ions was treated with hydrochloric acid resulting in a white precipitate
and a colorless solution. The precipitate did not change after addition of hot water but did
disappear after addition of ammonium hydroxide. After acidification with nitric acid, the white
precipitate reappeared. The colorless solution was treated with thioacetamide and hydrochloric
acid resulting in the formation of a dark precipitate. The precipitate was treated with nitric acid
resulting in a black precipitate and blue solution. The blue solution was treated with sulfuric acid
and ammonium hydroxide without changing. After addition of sodium thiosulfate, a reddish-
brown precipitate appeared.
Determine which ions were present in the unknown mixture. Select all which apply.
An unknown mixture of ions was treated with hydrochloric acid resulting in a white precipitate
and a colorless solution. The precipitate did not change after addition of hot water but did
disappear after addition of ammonium hydroxide. After acidification with nitric acid, the white
precipitate reappeared. The colorless solution was treated with thioacetamide and hydrochloric
acid resulting in the formation of a dark precipitate. The precipitate was treated with nitric acid
resulting in a black precipitate and blue solution. The blue solution was treated with sulfuric acid
and ammonium hydroxide without changing. After addition of sodium thiosulfate, a reddish-
brown precipitate appeared. Determine which ions were present in the unknown mixture. Select
all which apply Ag HgHE22 Bi3+ Cu2+ Cd2
Solution
Pb 2+
ion is reacts with Hcl gives Pbcl 2 which is white colour precipitate.Pbcl 2 is insoluble in water.PbCl2
is insoluble in hot water .but addition of NH4OH in the solution ti get sollubalized. After acidifying this solution the PbNO3 COMPLEX is
formed which is black in colour.