A solution containing a mixture of metal cations was treated as outlined.
What can be said about the presence of each of these groups of cations in the original solution?
Cation group | Description | Present in the original solution? |
---|---|---|
Ag+,Ag+, Pb2+,Pb2+, Hg2+2Hg22+ | form insoluble chlorides | |
Bi3+,Bi3+, Cd2+,Cd2+, Cu2+,Cu2+, Hg2+,Hg2+, Pb2+,Pb2+, Sb3+,Sb3+, Sn2+,Sn2+, Sn4+Sn4+ | form acid‑insoluble sulfides | |
Al3+,Al3+, Co2+,Co2+, Cr3+,Cr3+, Fe2+,Fe2+, Fe3+,Fe3+, Ni2+,Ni2+, Mn2+,Mn2+, Zn2+Zn2+ | form base‑insoluble sulfides or hydroxides | |
Ba2+,Ba2+, Ca2+,Ca2+, Mg2+,Mg2+, Sr2+Sr2+ | form insoluble carbonates | |
Li+,Li+, Na+,Na+, K+,K+, NH+4NH4+ | completely soluble |
A solution containing a mixture of metal cations was treated as outlined. Dilute HClHCl was added...
A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCl was added and a precipitate formed. The precipitate was filtered off. 2. H,S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off. 3. The pH was raised to about 9 and H,S was again bubbled through the solution. No precipitate formed. 4. Finally, sodium carbonate was added. A precipitate formed and was filtered off. What can be said about the...
A solution containing a mixture of metal cations was treated as follows. 1. Dilute HCl was added and a precipitate formed. The precipitate was filtered off. 2. H,S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off. 3. The pH was raised to about 9 and H, S was again bubbled through the solution. No precipitate formed. 4. Finally, sodium carbonate was added and no precipitate formed. What can be said about the presence of...
A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate formed. Next, H2S was bubbled through the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and H2S was again bubbled through the solution. A precipitate again formed and was filtered off. Finally, the solution was treated with a sodium carbonate solution, which resulted in no precipitation. Which metal ions were definately present, which were definitely...
A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate formed. Next, H2S was bubbled through the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and H2S was again bubbled through the solution. A precipitate again formed and was filtered off. Finally, the solution was treated with a sodium carbonate solution, which resulted in no precipitation. Classify the metal ions based on whether they were...
QUALITATIVE ANALYSIS OF GROUP II CATIONS Qualitative analysis is a method for identifying the elements present in a unknown mixture. For this purpose, metal cations are broadly classified into three groups based upon their solubilities. Group I cations, Pb2+, Ag, and Hg22+ form insoluble chlorides. Group Il cations, Cu2+, B12+, Hg2+, Cd2+ Sn4+, Sb2+ form insoluble sulfides belowyph 0.5 Group III cations, Al3+, Cr3+.Co3t felt Mn2+, Ni2+, Zn2+ form insoluble sulfides above pH 9. Group IV cations, Ba 2+, Ca2+, Mg2+, Na+, K+, NH4+, are the...
A solution containing a mixture of metal cations was treated with dilute HCl and a precipitate formed. The solution was filtered and H2S 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 formation of a precipitate. Which metal ions were definitely...
A solution containing a mixture of metal cations was treated as outlined.Dilute HClwas added and a precipitate formed. The precipitate was filtered off.H2Swas bubbled through the acidic solution. Again, a precipitate formed and was filtered off.The pH was raised to about 9 and H2Swas again bubbled through the solution. No precipitate formed.Finally, sodium carbonate was added. A precipitate formed and was filtered off.What can be said about the presence of each of these groups of cations in the original solution?
A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate formed. Next, H, S was bubbled through the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and HS was again bubbled through the solution. A precipitate again formed and was filtered off. Finally, the solution was treated with a sodium carbonate solution, which resulted in no precipitation Classify the metal ions based on whether they...
Map pling A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate formed. Next, H2S was bubbled through the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and H2S was again bubbled through the solution. A precipitate again formed and was filtered off. Finally, the solution was treated with a sodium carbonate solution, which resulted in no precipitation. Which metal ions were definitely present, which...
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 H, S 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...