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A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCI was added and no precipitate formed. 2. H₂S was bubbled through the acidic solution. A precipitate formed and was filtered off. 3. The pH was raised to about 9 and H₂S was again bubbled through the solution. A precipitate formed and was filtered off. 4. Finally, sodium carbonate was added to the filtered solution. 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? Cation group Ag+, Pb²+, Hg+ Bi³+Cd²+ Cu²+, Hg²+, Pb²+ Sb³+, Sn²+, Sn+ AP Co. Cr³+, Fe²+, Fe³+, Ni²+, Mn²+, Zn²+ Ba²+, Ca²+, Mg²+, Sr²³+ Lit, Na+, K+, NH; None of these ions were present Description form insoluble chlorides form acid-insoluble sulfides form base-insoluble sulfides or hydroxides form insoluble carbonates completely soluble Answer Bank All of these ions were present Present in the original solution? At least one of these ions was present. At least one of these ions was present. None of these ions were present. At least one of these ions was present. At least one of these ions was present. unknown unknown

A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCI was added and no precipitate formed. 2. H₂S was bubbled through the acidic solution. A precipitate formed and was filtered off. 3. The pH was raised to about 9 and H₂S was again bubbled through the solution. A precipitate formed and was filtered off. 4. Finally, sodium carbonate was added to the filtered solution. 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? Cation group Ag+, Pb²+, Hg+ Bi³+Cd²+ Cu²+, Hg²+, Pb²+ Sb³+, Sn²+, Sn+ AP Co. Cr³+, Fe²+, Fe³+, Ni²+, Mn²+, Zn²+ Ba²+, Ca²+, Mg²+, Sr²³+ Lit, Na+, K+, NH; None of these ions were present Description form insoluble chlorides form acid-insoluble sulfides form base-insoluble sulfides or hydroxides form insoluble carbonates completely soluble Answer Bank All of these ions were present Present in the original solution? At least one of these ions was present. At least one of these ions was present. None of these ions were present. At least one of these ions was present. At least one of these ions was present. unknown unknown

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCI was added and no precipitate formed. 2. H₂S was bubbled through the acidic solution. A precipitate formed and was filtered off. 3. The pH was raised to about 9 and H₂S was again bubbled through the solution. A precipitate formed and was filtered off. 4. Finally, sodium carbonate was added to the filtered solution. 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? Cation group Ag+, Pb²+, Hg+ Bi+, Cd²+, Cu²+, Hg2+, Pb²+, Sb +, Sn²+, Sn²+ AP+, Co²+, Cr³+, Fe²+, Fe³+, Ni²+, Mn²+, Zn²+ Ba²+, Ca²+, Mg2+, Sr²+ Li+, Na+, K+, NH; None of these ions were present. Incorrect Description form insoluble chlorides form acid-insoluble sulfides form base-insoluble sulfides or hydroxides form insoluble carbonates completely soluble Answer Bank All of these ions were present. Present in the original solution? At least one of these ions was present. At least one of these ions was present. None of these ions were present.. At least one of these ions was present. At least one of these ions was present. unknown unknown
Transcribed Image Text:A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCI was added and no precipitate formed. 2. H₂S was bubbled through the acidic solution. A precipitate formed and was filtered off. 3. The pH was raised to about 9 and H₂S was again bubbled through the solution. A precipitate formed and was filtered off. 4. Finally, sodium carbonate was added to the filtered solution. 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? Cation group Ag+, Pb²+, Hg+ Bi+, Cd²+, Cu²+, Hg2+, Pb²+, Sb +, Sn²+, Sn²+ AP+, Co²+, Cr³+, Fe²+, Fe³+, Ni²+, Mn²+, Zn²+ Ba²+, Ca²+, Mg2+, Sr²+ Li+, Na+, K+, NH; None of these ions were present. Incorrect Description form insoluble chlorides form acid-insoluble sulfides form base-insoluble sulfides or hydroxides form insoluble carbonates completely soluble Answer Bank All of these ions were present. Present in the original solution? At least one of these ions was present. At least one of these ions was present. None of these ions were present.. At least one of these ions was present. At least one of these ions was present. unknown unknown
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