Homework Answers
6. Unknown solution contains all the three ions i.e. I-, Cl- and SO42-.
Ag + I- gives AgI resulting in Yellow Ppt
Ag +Cl- gives AgCl resulting in White Ppt
Ba2+ + SO42- gives BaSO4 resulting in White Ppt
7. The unknown solution contains only SO42- ion while Cl- and I- are absent.
Ag + SO42- results into No Reaction
Ba2+ + SO42- gives BaSO4 resulting in White Ppt
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DATA TABLE STEP 1 AgNO3 1,C,,2 STEP 3 Ba(NO3)2 SO - Decant white BaSO4 ppt (CONFIRMS...
RIMENT 9 NAME SECTION POSTLABORATORY ASSIGNMENT 1. Which anions C . Cr, so42) are confirmed to...
RIMENT 9 NAME SECTION POSTLABORATORY ASSIGNMENT 1. Which anions C . Cr, so42) are confirmed to be present in an unknown solution given the following observations? * The unknown solution in test tube #1 plus AgNO3 gives a yellow precipitate. * The supernate in test tube #1 is poured into test tube #3. The yellow precipitate in test tube #1 partially dissolves in NH40. The supernate in test tube #1 is poured into test tube #2. ·The solution in test...
Anion Analysis 0. An anion solution is analyzed for iodide, chloride, and sulfate ions. The solution...
Anion Analysis
0. An anion solution is analyzed for iodide, chloride, and sulfate ions. The solution plus AgNO, gives a yellow precipitate. The supernate is poured into test tube #3. The yellow precipitate does not dissolve completely in NH3 H20. The supernate is decanted into test tube #2 Test tube #2 plus HNO, produces a white precipitate. Test tube #3 plus Ba(NO3), yields a white precipitate. Refer to Figure 10-3 and determine which of these anions are present in the...
Anion analysis POSTLABORATORY ASSIGNMENT 1. An iodide/chloride/sulfate unknown solution gave a yellow precipitate with AgNO The...
Anion analysis
POSTLABORATORY ASSIGNMENT 1. An iodide/chloride/sulfate unknown solution gave a yellow precipitate with AgNO The supernate did not react with Ba(NO)). The yellow precipitate did not dissolve in NH, H,O. After centrifuging the supernate was acidified with HNO, and gave a white precipitate. State the ion(s) present in the unknown solution. An iodide/chloride/sulfate unknown solution plus AgNO, gave no reaction. The solution was treated with Ba(NOs)2 and produced a white precipitate. State the ion(s) present in the unknown solution....
EXPERIMENTAL PROCEDURE: GROUP I CATIONS Test a known solution that contains all 3 cations simultancously with...
EXPERIMENTAL PROCEDURE: GROUP I CATIONS Test a known solution that contains all 3 cations simultancously with your unknown. Follow the same procedure (separately) for both the unknown and known solutions. Wear gloves during all procedures. STEP 1: Precipitation of Group I. To 10 drops (only!) of the solution to be analyzed, add 2 drops 6 M HCl. Stir well. Centrifuge and decant the solution (S1) from the ppt (P1). Treat the ppt Pl according to Step 2. (There is no...
Identify an unknown solution (1, 2, 3 and 4) and fill the vacancies in the table...
Identify an unknown solution (1, 2, 3 and 4) and fill
the vacancies in the table
Procedure
The unknown solutions are : HCl, NaOH,
Acetic acid, Na2CO3
Test each solution with litmus paper. Record the results in the
data table below.
Take little of each solution in a test tube and add 5 drops of
silver nitrate to each solution. Record the results in the data
table.
Take little of each solution in a test tube and add two drops...
1. Refer to Data Table A.2 and state the solutions that produce reactions similar to (a)...
1. Refer to Data Table A.2 and state the solutions that produce reactions similar to (a) Li State the elements in this experiment that belong to: (a) Group IA/1 (b) Ba 2. (b) Group IIA/2 An unknown solution gives a brief green flame test. The unknown gives a white precipitate with ammonium carbonate, ammonium phosphate, and ammonium sulfate. The halide test produces a purple color in the upper hexane layer. Identify (a) the alkali or alkaline earth element, and (b)...
Identify an unknown solution (1, 2, 3 and 4) and fill the vacancies in the table...
Identify an unknown solution (1, 2, 3 and 4) and fill the vacancies in the table Procedure The unknown solutions are : HCI, NaOH, Acetic acid, Na2CO3 1- Test each solution with litmus paper. Record the results in the data table below. 2- Take little of each solution in a test tube and add 5 drops of silver nitrate to each solution. Record the results in the data table. 3- Take little of each solution in a test tube and...
1. Write net ionic equations for ALL precipitation reactions of each anion studied in this e with Ag'(aq) and Ba (a), respectively, (in the absence of HNO,) at Bad 2 ptt disalv...
1. Write net ionic equations for ALL precipitation reactions of each anion studied in this e with Ag'(aq) and Ba (a), respectively, (in the absence of HNO,) at Bad 2 ptt disalve 51 과 IND Add about 10 drops of deionized water and 10 drops of 6 MNH, to the precipitate and mix thoroughly. Note that the Agl precipitate will persist; Agl is not soluble in NHs solution Confirmation Test for lodide Carry out confirmatory test for iodide as follow:...
3. Suppose after adding HCl to ppt 16, you do not have any black solid. What,...
3. Suppose after adding HCl to ppt 16, you do not have any black solid. What, if anything, should you do to test for Co2 and Ni*? Qual Scheme: Group III: Co?(pink), N1" (green), Fet+ (yellow), Cr" (blue-grey), Mn(pink), AP (colorless), Zn? (colorless). Unknown B Solution: Use 10 dps of unknown sample and 10 dps of H20 and go to Procedure for Group III. Procedure for Group II: Add 2 dps NHCl soln, add 6M NHOH until just basic to...
Experiment related questions PART 1 Data: NR= no reaction NaNO, KNO Ca(NO3)2 Mg(NO3)2 Ba(NO3)2 Cu(NO3)2 AI(NO3)3...
Experiment related questions
PART 1 Data: NR= no reaction NaNO, KNO Ca(NO3)2 Mg(NO3)2 Ba(NO3)2 Cu(NO3)2 AI(NO3)3 Ni(NO3)2 AgNO3 9 NaCI NR INR NR NR INR N P milky color Nal INR NR NR autunn NR NR yellow Na2C204 millky D * 16* IP 40 * baby arolweertrade Milky obr I color IP P sade White INRP blue color P + Na2S milky ight. I black Brown on color Grey Na2SO4 I milley silver YY 7 V 7 NaOH light I...
RIMENT 9 NAME SECTION POSTLABORATORY ASSIGNMENT 1. Which anions C . Cr, so42) are confirmed to be present in an unknown solution given the following observations? * The unknown solution in test tube #1 plus AgNO3 gives a yellow precipitate. * The supernate in test tube #1 is poured into test tube #3. The yellow precipitate in test tube #1 partially dissolves in NH40. The supernate in test tube #1 is poured into test tube #2. ·The solution in test...
Anion Analysis
0. An anion solution is analyzed for iodide, chloride, and sulfate ions. The solution plus AgNO, gives a yellow precipitate. The supernate is poured into test tube #3. The yellow precipitate does not dissolve completely in NH3 H20. The supernate is decanted into test tube #2 Test tube #2 plus HNO, produces a white precipitate. Test tube #3 plus Ba(NO3), yields a white precipitate. Refer to Figure 10-3 and determine which of these anions are present in the...
Anion analysis
POSTLABORATORY ASSIGNMENT 1. An iodide/chloride/sulfate unknown solution gave a yellow precipitate with AgNO The supernate did not react with Ba(NO)). The yellow precipitate did not dissolve in NH, H,O. After centrifuging the supernate was acidified with HNO, and gave a white precipitate. State the ion(s) present in the unknown solution. An iodide/chloride/sulfate unknown solution plus AgNO, gave no reaction. The solution was treated with Ba(NOs)2 and produced a white precipitate. State the ion(s) present in the unknown solution....
EXPERIMENTAL PROCEDURE: GROUP I CATIONS Test a known solution that contains all 3 cations simultancously with your unknown. Follow the same procedure (separately) for both the unknown and known solutions. Wear gloves during all procedures. STEP 1: Precipitation of Group I. To 10 drops (only!) of the solution to be analyzed, add 2 drops 6 M HCl. Stir well. Centrifuge and decant the solution (S1) from the ppt (P1). Treat the ppt Pl according to Step 2. (There is no...
Identify an unknown solution (1, 2, 3 and 4) and fill
the vacancies in the table
Procedure
The unknown solutions are : HCl, NaOH,
Acetic acid, Na2CO3
Test each solution with litmus paper. Record the results in the
data table below.
Take little of each solution in a test tube and add 5 drops of
silver nitrate to each solution. Record the results in the data
table.
Take little of each solution in a test tube and add two drops...
1. Refer to Data Table A.2 and state the solutions that produce reactions similar to (a) Li State the elements in this experiment that belong to: (a) Group IA/1 (b) Ba 2. (b) Group IIA/2 An unknown solution gives a brief green flame test. The unknown gives a white precipitate with ammonium carbonate, ammonium phosphate, and ammonium sulfate. The halide test produces a purple color in the upper hexane layer. Identify (a) the alkali or alkaline earth element, and (b)...
Identify an unknown solution (1, 2, 3 and 4) and fill the vacancies in the table Procedure The unknown solutions are : HCI, NaOH, Acetic acid, Na2CO3 1- Test each solution with litmus paper. Record the results in the data table below. 2- Take little of each solution in a test tube and add 5 drops of silver nitrate to each solution. Record the results in the data table. 3- Take little of each solution in a test tube and...
1. Write net ionic equations for ALL precipitation reactions of each anion studied in this e with Ag'(aq) and Ba (a), respectively, (in the absence of HNO,) at Bad 2 ptt disalve 51 과 IND Add about 10 drops of deionized water and 10 drops of 6 MNH, to the precipitate and mix thoroughly. Note that the Agl precipitate will persist; Agl is not soluble in NHs solution Confirmation Test for lodide Carry out confirmatory test for iodide as follow:...
3. Suppose after adding HCl to ppt 16, you do not have any black solid. What, if anything, should you do to test for Co2 and Ni*? Qual Scheme: Group III: Co?(pink), N1" (green), Fet+ (yellow), Cr" (blue-grey), Mn(pink), AP (colorless), Zn? (colorless). Unknown B Solution: Use 10 dps of unknown sample and 10 dps of H20 and go to Procedure for Group III. Procedure for Group II: Add 2 dps NHCl soln, add 6M NHOH until just basic to...
Experiment related questions
PART 1 Data: NR= no reaction NaNO, KNO Ca(NO3)2 Mg(NO3)2 Ba(NO3)2 Cu(NO3)2 AI(NO3)3 Ni(NO3)2 AgNO3 9 NaCI NR INR NR NR INR N P milky color Nal INR NR NR autunn NR NR yellow Na2C204 millky D * 16* IP 40 * baby arolweertrade Milky obr I color IP P sade White INRP blue color P + Na2S milky ight. I black Brown on color Grey Na2SO4 I milley silver YY 7 V 7 NaOH light I...
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