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. H₂S was bubbled through the acidic solution. No precipitate formed. 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+, Hg2+ Bi³ +, Cd²+, Cu²+, Hg²+, Pb²+, Sb³ +, Sn²+, Sn4+ Al³+, Co²+, Cr³+, Fe²+, Fe³+, Ni²+, Mn²+, Zn²+ Ba²+, Ca²+, Mg2+, Sr² + Li+, Na+, K+, NH Description form insoluble chlorides form acid-insoluble sulfides form base-insoluble sulfides or hydroxides form insoluble carbonates completely soluble Present in the original solution?

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. H₂S was bubbled through the acidic solution. No precipitate formed. 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+, Hg2+ Bi³ +, Cd²+, Cu²+, Hg²+, Pb²+, Sb³ +, Sn²+, Sn4+ Al³+, Co²+, Cr³+, Fe²+, Fe³+, Ni²+, Mn²+, Zn²+ Ba²+, Ca²+, Mg2+, Sr² + Li+, Na+, K+, NH Description form insoluble chlorides form acid-insoluble sulfides form base-insoluble sulfides or hydroxides form insoluble carbonates completely soluble Present in the original solution?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter19: The Chemistry Of The Main-group Elements

Section: Chapter Questions

Problem 88QRT

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Similar questions

Refer to Appendix J for solubility products for calcium salts. Determine which of the calcium salts listed is most soluble in moles per liter and which is most soluble in grams per liter.
Suggest a method for separating a precipitate consisting of a mixture of solid CuS and solid Cu(OH)2.
Under what circumstances, if any, does a sample of solid AgCl completely dissolve in pure water?
Consider the following two acids: In two separate experiments the pH was measured during the titration of 5.00 mmol of each acid with 0.200 M NaOH. Each experiment showed only one stoichiometric point when the data were plotted. In one experiment the stoichiometric point was at 25.00 mL added NaOH, and in the other experiment the stoichiometric point was at 50.00 mL NaOH. Explain these results. (See Exercise 113.)
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