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https://www.youtube.com/watch?v=NFTB0IVTLEI Sodium Hydroxide Solution, NaOH Metal Cation Observation (must include ionic equation that represents the observed reaction) Ca2+ Zn2+ Pb2+ Cu2+ Cr3+ Fe2+ Fe3+ Dilute Ammonia Solution, NH3 Metal Cation Observation (must include ionic equation that represents the observed reaction for the ions in bold) Ca2+ Zn2+ Pb2+ Cu2+ Cr3+ Fe2- Fes-

https://www.youtube.com/watch?v=NFTB0IVTLEI Sodium Hydroxide Solution, NaOH Metal Cation Observation (must include ionic equation that represents the observed reaction) Ca2+ Zn2+ Pb2+ Cu2+ Cr3+ Fe2+ Fe3+ Dilute Ammonia Solution, NH3 Metal Cation Observation (must include ionic equation that represents the observed reaction for the ions in bold) Ca2+ Zn2+ Pb2+ Cu2+ Cr3+ Fe2- Fes-

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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the following experiment is reference from this  video link, they are the first 2 experiments ;

 

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https://www.youtube.com/watch?v=NFTBOIvTLtI

https://www.youtube.com/watch?v=NFTBOlvTLtl Sodium Hydroxide Solution, NaOH Metal Cation Observation (must include ionic equation that represents the observed Cą2+ reaction) Zn2+ Pb2+ Cu2+ Cr3+ Fe2+ Fe3+ Dilute Ammonia Solution, NH3 Metal Cation Observation (must include ionic equation that represents the observed reaction for the ions in bold) Ca2+ Zn2+ Pb2+ Cu2+ Cr3+ Fe2+ Fe3+
Transcribed Image Text:https://www.youtube.com/watch?v=NFTBOlvTLtl Sodium Hydroxide Solution, NaOH Metal Cation Observation (must include ionic equation that represents the observed Cą2+ reaction) Zn2+ Pb2+ Cu2+ Cr3+ Fe2+ Fe3+ Dilute Ammonia Solution, NH3 Metal Cation Observation (must include ionic equation that represents the observed reaction for the ions in bold) Ca2+ Zn2+ Pb2+ Cu2+ Cr3+ Fe2+ Fe3+
2+, 2- 3- To test for the presence of Ca Zn.Pb.Cu.Or .Fe and Fe using aqueous sodium hydroxcide and ammonia Test for the presence of CI, Br.1, 0o," so, and So, Identify the ions present in an unknown salt solution, X INTRODUCTION Qualitative Analysis is the identification of an unknown substance. Cations and anions in solution can be identified from: - The colour of the solution - Whether or not they give a precipitate with certain reagents, the colour of that precipitate and the solubility of the precipitate in other reagents - Whether or not they form complex ions with certain reagents, observable by the solution turning a characteristic colour Many qualitative analysis schemes rely on the selective precipitation of specific cations and anions based on their solubilities. When two solutions are mixed, a compound formed from a cation in one solution and an anion in the second solution will precipitate if its concentration is higher than its solubility. Therefore, the solubility test can be conducted by mixing a few drops from two different solutions and noting whether a precipitate forms. MATERIALS/APPARATUS Metal ion solutions Anion solutions Test tubes Dropping pipettes Unknown X МЕТHOD Sodium hydroxide solution 1. Place Iml of the cation test solution in a test tube 2. Add a few drops of ailute NaOH to the test solution until a change is observed. Record your observations. 3. Continue to add N2OH, a few drops at a time, until the test tube is half-full and shake. Record your observations. 4. Repeat steps 1-3 with each of the cation solutions. Ammonia Solution 1. Place Iml of the cation test solution in a test tube 2. Add a few drops of dilute NH, to the test solution until a change is observed. Record your observations. 3. Continue to add NH, a few drops at a time, until the test tube is half-full and shake Record your observations. 4. Repeat steps 1-3 with each of the cation solutions. Barium Chloride Solution (Co, so and So,) 1. Place Iml of the anion test solution in a test tube. 2. Add iml of BaCI, if a precipitate is formed add HCl gradually until in excess. Record your observations. 3. Repeat steps 1-2 with the anions identified for this test. Siver Nitrte Solution (Ci, B.i.co so) 1. Place iml of the anion test solution in a test tube 2. Add 1 ml of AgNO, if a precipitate is formed, split the precipitate into two portions; to the first add HNO, and to the second add NH. Lnknown X Determine the identify of X using any combination of tests carried out above
Transcribed Image Text:2+, 2- 3- To test for the presence of Ca Zn.Pb.Cu.Or .Fe and Fe using aqueous sodium hydroxcide and ammonia Test for the presence of CI, Br.1, 0o," so, and So, Identify the ions present in an unknown salt solution, X INTRODUCTION Qualitative Analysis is the identification of an unknown substance. Cations and anions in solution can be identified from: - The colour of the solution - Whether or not they give a precipitate with certain reagents, the colour of that precipitate and the solubility of the precipitate in other reagents - Whether or not they form complex ions with certain reagents, observable by the solution turning a characteristic colour Many qualitative analysis schemes rely on the selective precipitation of specific cations and anions based on their solubilities. When two solutions are mixed, a compound formed from a cation in one solution and an anion in the second solution will precipitate if its concentration is higher than its solubility. Therefore, the solubility test can be conducted by mixing a few drops from two different solutions and noting whether a precipitate forms. MATERIALS/APPARATUS Metal ion solutions Anion solutions Test tubes Dropping pipettes Unknown X МЕТHOD Sodium hydroxide solution 1. Place Iml of the cation test solution in a test tube 2. Add a few drops of ailute NaOH to the test solution until a change is observed. Record your observations. 3. Continue to add N2OH, a few drops at a time, until the test tube is half-full and shake. Record your observations. 4. Repeat steps 1-3 with each of the cation solutions. Ammonia Solution 1. Place Iml of the cation test solution in a test tube 2. Add a few drops of dilute NH, to the test solution until a change is observed. Record your observations. 3. Continue to add NH, a few drops at a time, until the test tube is half-full and shake Record your observations. 4. Repeat steps 1-3 with each of the cation solutions. Barium Chloride Solution (Co, so and So,) 1. Place Iml of the anion test solution in a test tube. 2. Add iml of BaCI, if a precipitate is formed add HCl gradually until in excess. Record your observations. 3. Repeat steps 1-2 with the anions identified for this test. Siver Nitrte Solution (Ci, B.i.co so) 1. Place iml of the anion test solution in a test tube 2. Add 1 ml of AgNO, if a precipitate is formed, split the precipitate into two portions; to the first add HNO, and to the second add NH. Lnknown X Determine the identify of X using any combination of tests carried out above
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