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1 pause ↑ shift pg dn end del Mg2+. Ammonium sulfate is added to the known cation solution and the separation begins. Figure 4 presents an overview of the analysis. In Step 1, Ba2+ is confirmed; in Step 2, Ca2+ is confirmed; and in Step 3, Mg2+ is confirmed. We will begin the cation analysis with a known solution containing Ba2+, Ca2+, and itel) STEP 1 (NH4)2SO4 RE 15 TH GEN Ba2, Ca2, Mg2+ STEP 2 (NH4)2C2O4 Ca2+, Mg2+ Decant BaSO4 ppt HCI STEP 3 NA2HPO4 + NAOH Green Flame Test Mg2+ 3 (CONFIRMS Ba2+) Decant CaC204 ppt НС Brick-Red Flame Test (CONFIRMS Ca2+) 31 Discard supernate HCl and magnesium indicator 3 red litmus NAOH 3/ Blue "Lake" ppt (CONFIRMS Mg²+) blue spot Figure 4 Cation Analysis The systematic separation and identification of Ba2+, Ca2+, and Mg2+ cations in a known solution. Identifying Cations in Solution 78 3. Σ home 4. enter 3. 1 pause 1 shift pg dn end enter del ins alt Refer to Figure 4, and determine which of the following cations are present and absent in Reknown cation solution: Ba2+, Ca2+, and Mg2+ Unknown solution in test tube #1 plus aqueous (NH4)2SO4 gives a white precipitate. The supernate in test tube #1 is poured into test tube #2. • The precipitate in test tube #1 plus HCl gives a green flame test for two seconds. • The solution in test tube #2 plus aqueous (NH4)2C204 gives no reaction. • The solution in test tube #2 is poured into test tube #3. • Test tube #3 plus aqueous N22HPO4 and NaOH gives a white precipitate. • The precipitate dissolves in HCI, and magnesium indicator is added. • The solution is made basic with aqueous NAOH and centrifuged. • A blue "lake," that is a clear blue gel, is observed at the bottom of the test tube. Cation(s) absent Cation(s) present rforming this experiment? 2N

1 pause ↑ shift pg dn end del Mg2+. Ammonium sulfate is added to the known cation solution and the separation begins. Figure 4 presents an overview of the analysis. In Step 1, Ba2+ is confirmed; in Step 2, Ca2+ is confirmed; and in Step 3, Mg2+ is confirmed. We will begin the cation analysis with a known solution containing Ba2+, Ca2+, and itel) STEP 1 (NH4)2SO4 RE 15 TH GEN Ba2, Ca2, Mg2+ STEP 2 (NH4)2C2O4 Ca2+, Mg2+ Decant BaSO4 ppt HCI STEP 3 NA2HPO4 + NAOH Green Flame Test Mg2+ 3 (CONFIRMS Ba2+) Decant CaC204 ppt НС Brick-Red Flame Test (CONFIRMS Ca2+) 31 Discard supernate HCl and magnesium indicator 3 red litmus NAOH 3/ Blue "Lake" ppt (CONFIRMS Mg²+) blue spot Figure 4 Cation Analysis The systematic separation and identification of Ba2+, Ca2+, and Mg2+ cations in a known solution. Identifying Cations in Solution 78 3. Σ home 4. enter 3. 1 pause 1 shift pg dn end enter del ins alt Refer to Figure 4, and determine which of the following cations are present and absent in Reknown cation solution: Ba2+, Ca2+, and Mg2+ Unknown solution in test tube #1 plus aqueous (NH4)2SO4 gives a white precipitate. The supernate in test tube #1 is poured into test tube #2. • The precipitate in test tube #1 plus HCl gives a green flame test for two seconds. • The solution in test tube #2 plus aqueous (NH4)2C204 gives no reaction. • The solution in test tube #2 is poured into test tube #3. • Test tube #3 plus aqueous N22HPO4 and NaOH gives a white precipitate. • The precipitate dissolves in HCI, and magnesium indicator is added. • The solution is made basic with aqueous NAOH and centrifuged. • A blue "lake," that is a clear blue gel, is observed at the bottom of the test tube. Cation(s) absent Cation(s) present rforming this experiment? 2N

Chemistry
Chemistry
9th Edition
ISBN:9781133611097
Author:Steven S. Zumdahl
Publisher:Steven S. Zumdahl
Chapter16: Solubility And Complex Ion Equilibria
Section: Chapter Questions
Problem 7RQ
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1 pause ↑ shift pg dn end del Mg2+. Ammonium sulfate is added to the known cation solution and the separation begins. Figure 4 presents an overview of the analysis. In Step 1, Ba2+ is confirmed; in Step 2, Ca2+ is confirmed; and in Step 3, Mg2+ is confirmed. We will begin the cation analysis with a known solution containing Ba2+, Ca2+, and itel) STEP 1 (NH4)2SO4 RE 15 TH GEN Ba2, Ca2, Mg2+ STEP 2 (NH4)2C2O4 Ca2+, Mg2+ Decant BaSO4 ppt HCI STEP 3 NA2HPO4 + NAOH Green Flame Test Mg2+ 3 (CONFIRMS Ba2+) Decant CaC204 ppt НС Brick-Red Flame Test (CONFIRMS Ca2+) 31 Discard supernate HCl and magnesium indicator 3 red litmus NAOH 3/ Blue "Lake" ppt (CONFIRMS Mg²+) blue spot Figure 4 Cation Analysis The systematic separation and identification of Ba2+, Ca2+, and Mg2+ cations in a known solution. Identifying Cations in Solution 78 3. Σ
Transcribed Image Text:1 pause ↑ shift pg dn end del Mg2+. Ammonium sulfate is added to the known cation solution and the separation begins. Figure 4 presents an overview of the analysis. In Step 1, Ba2+ is confirmed; in Step 2, Ca2+ is confirmed; and in Step 3, Mg2+ is confirmed. We will begin the cation analysis with a known solution containing Ba2+, Ca2+, and itel) STEP 1 (NH4)2SO4 RE 15 TH GEN Ba2, Ca2, Mg2+ STEP 2 (NH4)2C2O4 Ca2+, Mg2+ Decant BaSO4 ppt HCI STEP 3 NA2HPO4 + NAOH Green Flame Test Mg2+ 3 (CONFIRMS Ba2+) Decant CaC204 ppt НС Brick-Red Flame Test (CONFIRMS Ca2+) 31 Discard supernate HCl and magnesium indicator 3 red litmus NAOH 3/ Blue "Lake" ppt (CONFIRMS Mg²+) blue spot Figure 4 Cation Analysis The systematic separation and identification of Ba2+, Ca2+, and Mg2+ cations in a known solution. Identifying Cations in Solution 78 3. Σ
home 4. enter 3. 1 pause 1 shift pg dn end enter del ins alt Refer to Figure 4, and determine which of the following cations are present and absent in Reknown cation solution: Ba2+, Ca2+, and Mg2+ Unknown solution in test tube #1 plus aqueous (NH4)2SO4 gives a white precipitate. The supernate in test tube #1 is poured into test tube #2. • The precipitate in test tube #1 plus HCl gives a green flame test for two seconds. • The solution in test tube #2 plus aqueous (NH4)2C204 gives no reaction. • The solution in test tube #2 is poured into test tube #3. • Test tube #3 plus aqueous N22HPO4 and NaOH gives a white precipitate. • The precipitate dissolves in HCI, and magnesium indicator is added. • The solution is made basic with aqueous NAOH and centrifuged. • A blue "lake," that is a clear blue gel, is observed at the bottom of the test tube. Cation(s) absent Cation(s) present rforming this experiment? 2N
Transcribed Image Text:home 4. enter 3. 1 pause 1 shift pg dn end enter del ins alt Refer to Figure 4, and determine which of the following cations are present and absent in Reknown cation solution: Ba2+, Ca2+, and Mg2+ Unknown solution in test tube #1 plus aqueous (NH4)2SO4 gives a white precipitate. The supernate in test tube #1 is poured into test tube #2. • The precipitate in test tube #1 plus HCl gives a green flame test for two seconds. • The solution in test tube #2 plus aqueous (NH4)2C204 gives no reaction. • The solution in test tube #2 is poured into test tube #3. • Test tube #3 plus aqueous N22HPO4 and NaOH gives a white precipitate. • The precipitate dissolves in HCI, and magnesium indicator is added. • The solution is made basic with aqueous NAOH and centrifuged. • A blue "lake," that is a clear blue gel, is observed at the bottom of the test tube. Cation(s) absent Cation(s) present rforming this experiment? 2N
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