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▼ Part A - Solution 1 After being given a solution containing a set of unknown ions, you perform the following sequence of tests to determine the identity of the cations in solution: 1. A flame test produces no color 2. You take a small portion of the solution and add NaOH. A vapor is produced that turns red litmus blue. 3. You add HCI to solution, which results in the formation of a white precipitate. The supernatant is separated and used for the remainder of the tests. 4. The addition of buffered NH4*/NH3 to a portion of the supernatant from step 3 does not produce a precipitate. 5. The addition of ammonium oxalate to a portion of the superntant from step 3 does not produce a precipitate 6. The addition of a strong base to a portion of the supernatant from step 3 generates a precipitate. 7. The supernatant from step 6 is separated from the precipitate. The addition of HCI and K4Fe(CN)6 to the solution produces no reaction. Based on these tests, identify which of the following ions must be present, can be present, and cannot be present. Na+, NH4+, Ag+, Fe³+, Al³+, Cr³+, Ca2+, Mg²+, Ni²+, Zn²+

▼ Part A - Solution 1 After being given a solution containing a set of unknown ions, you perform the following sequence of tests to determine the identity of the cations in solution: 1. A flame test produces no color 2. You take a small portion of the solution and add NaOH. A vapor is produced that turns red litmus blue. 3. You add HCI to solution, which results in the formation of a white precipitate. The supernatant is separated and used for the remainder of the tests. 4. The addition of buffered NH4*/NH3 to a portion of the supernatant from step 3 does not produce a precipitate. 5. The addition of ammonium oxalate to a portion of the superntant from step 3 does not produce a precipitate 6. The addition of a strong base to a portion of the supernatant from step 3 generates a precipitate. 7. The supernatant from step 6 is separated from the precipitate. The addition of HCI and K4Fe(CN)6 to the solution produces no reaction. Based on these tests, identify which of the following ions must be present, can be present, and cannot be present. Na+, NH4+, Ag+, Fe³+, Al³+, Cr³+, Ca2+, Mg²+, Ni²+, Zn²+

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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Must Be Present Can Be Present NH4+ Zn²+ Ca²+ A13+ Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining You sorted 6 out of 10 items incorrectly. One of the items you sorted incorrectly was " Ag+ ". Cannot Be Present Ni2+ Na Fe³+ Cr³+ Ag+ Mg2+
Transcribed Image Text:Must Be Present Can Be Present NH4+ Zn²+ Ca²+ A13+ Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining You sorted 6 out of 10 items incorrectly. One of the items you sorted incorrectly was " Ag+ ". Cannot Be Present Ni2+ Na Fe³+ Cr³+ Ag+ Mg2+
Part A - Solution 1 After being given a solution containing a set of unknown ions, you perform the following sequence of tests to determine the identity of the cations in solution: 1. A flame test produces no color 2. You take a small portion of the solution and add NaOH. A vapor is produced that turns red litmus blue. 3. You add HCI to solution, which results in the formation of a white precipitate. The supernatant is separated and used for the remainder of the tests. 4. The addition of buffered NH4*/NH3 to a portion of the supernatant from step 3 does not produce a precipitate. 5. The addition of ammonium oxalate to a portion of the superntant from step 3 does not produce a precipitate 6. The addition of a strong base to a portion of the supernatant from step 3 generates a precipitate. 7. The supernatant from step 6 is separated from the precipitate. The addition of HCI and K4Fe(CN)6 to the solution produces no reaction. Based on these tests, identify which of the following ions must be present, can be present, and cannot be present. Na+, NH4+, Ag+, Fe³+, Al³+, Cr³+, Ca2+, Mg²+, Ni²+, Zn²+ Reset Help ☐☐☐ O
Transcribed Image Text:Part A - Solution 1 After being given a solution containing a set of unknown ions, you perform the following sequence of tests to determine the identity of the cations in solution: 1. A flame test produces no color 2. You take a small portion of the solution and add NaOH. A vapor is produced that turns red litmus blue. 3. You add HCI to solution, which results in the formation of a white precipitate. The supernatant is separated and used for the remainder of the tests. 4. The addition of buffered NH4*/NH3 to a portion of the supernatant from step 3 does not produce a precipitate. 5. The addition of ammonium oxalate to a portion of the superntant from step 3 does not produce a precipitate 6. The addition of a strong base to a portion of the supernatant from step 3 generates a precipitate. 7. The supernatant from step 6 is separated from the precipitate. The addition of HCI and K4Fe(CN)6 to the solution produces no reaction. Based on these tests, identify which of the following ions must be present, can be present, and cannot be present. Na+, NH4+, Ag+, Fe³+, Al³+, Cr³+, Ca2+, Mg²+, Ni²+, Zn²+ Reset Help ☐☐☐ O
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