A solution containing a mixture of metal cations was treated with dilute HCl and a precipitate formed. The solution was filtered and H,S was bubbled through the acidic solution. A precipitate again formed and was filtered off. Then, the pH was raised to about 8 and H2S was again bubbled through the solution. This time, no precipitate formed. Finally, the solution was treated with a sodium carbonate solution, which resulted in the formation of a precipitate. Classify the metal ions based on whether they were definitely absent from the original mixture or whether it is possible they were present in the original mixture? Definitely absent Possibly present Ag* Cu2+ Ba2+ Mn2+ Ni2+ A3+ Lit Sn4+ Mg²+ Hg2+ Sb+ Hg2+ Pb2+

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A solution containing a mixture of metal cations was treated with dilute HCl and a precipitate formed. The solution was filtered and
H,S was bubbled through the acidic solution. A precipitate again formed and was filtered off. Then, the pH was raised to about 8
and H2S was again bubbled through the solution. This time, no precipitate formed. Finally, the solution was treated with a sodium
carbonate solution, which resulted in the formation of a precipitate.
Classify the metal ions based on whether they were definitely absent from the original mixture or whether it is possible they were
present in the original mixture?
Definitely absent
Possibly present
Ag+
Cu2+
Ba2+
Mn2+
Ni2+
AB+
Lit
Sn++
Mg2+
Hg2+
Sb3+
Hg2+
Pb2+
Transcribed Image Text:A solution containing a mixture of metal cations was treated with dilute HCl and a precipitate formed. The solution was filtered and H,S was bubbled through the acidic solution. A precipitate again formed and was filtered off. Then, the pH was raised to about 8 and H2S was again bubbled through the solution. This time, no precipitate formed. Finally, the solution was treated with a sodium carbonate solution, which resulted in the formation of a precipitate. Classify the metal ions based on whether they were definitely absent from the original mixture or whether it is possible they were present in the original mixture? Definitely absent Possibly present Ag+ Cu2+ Ba2+ Mn2+ Ni2+ AB+ Lit Sn++ Mg2+ Hg2+ Sb3+ Hg2+ Pb2+
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