(a) Interpretation: Whether the reaction Cu 2 + ( aq) + H 2 S(satd aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined. Concept introduction: Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb 2+ , Hg 2 2+ , Ag + belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H 2 S in an acidic medium(0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H 2 S in a buffer mixture of NH 3 and NH 4 + ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO 3 2- . This yields carbonate precipitates of cations. In the final solution, all the water soluble cations include.

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Answer 1

Question

Chapter 18, Problem 62E

Interpretation Introduction

(a)

Interpretation:

Whether the reaction Cu2+(aq) + H2S(satd aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium(0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yields carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Interpretation Introduction

(b)

Interpretation:

Whether the reaction Mg2+(aq) + H2S(satd aq) →0.3 M HCl proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄₊ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Interpretation Introduction

(c)

Interpretation:

Whether the reaction PbS(s) + HCl(0.3 M) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. The final solution includes all the water soluble cations.

Interpretation Introduction

(d)

Interpretation:

Whether the reaction ZnS(s) + HNO3(aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

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I have a question about this problem involving mechanisms and drawing curved arrows for acids and bases. I know we need to identify the nucleophile and electrophile, but are there different types of reactions? For instance, what about Grignard reagents and other types that I might not be familiar with? Can you help me with this? I want to identify the names of the mechanisms for problems 1-14, such as Gilman reagents and others. Are they all the same? Also, could you rewrite it so I can better understand? The handwriting is pretty cluttered. Additionally, I need to label the nucleophile and electrophile, but my main concern is whether those reactions differ, like the "Brønsted-Lowry acid-base mechanism, Lewis acid-base mechanism, acid-catalyzed mechanisms, acid-catalyzed reactions, base-catalyzed reactions, nucleophilic substitution mechanisms (SN1 and SN2), elimination reactions (E1 and E2), organometallic mechanisms, and so forth."

Answer 2

Question

Chapter 18, Problem 62E

Interpretation Introduction

(a)

Interpretation:

Whether the reaction Cu2+(aq) + H2S(satd aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium(0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yields carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Interpretation Introduction

(b)

Interpretation:

Whether the reaction Mg2+(aq) + H2S(satd aq) →0.3 M HCl proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄₊ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Interpretation Introduction

(c)

Interpretation:

Whether the reaction PbS(s) + HCl(0.3 M) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. The final solution includes all the water soluble cations.

Interpretation Introduction

(d)

Interpretation:

Whether the reaction ZnS(s) + HNO3(aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

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Answer 3

Question

Chapter 18, Problem 62E

Interpretation Introduction

(a)

Interpretation:

Whether the reaction Cu2+(aq) + H2S(satd aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium(0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yields carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Interpretation Introduction

(b)

Interpretation:

Whether the reaction Mg2+(aq) + H2S(satd aq) →0.3 M HCl proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄₊ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Interpretation Introduction

(c)

Interpretation:

Whether the reaction PbS(s) + HCl(0.3 M) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. The final solution includes all the water soluble cations.

Interpretation Introduction

(d)

Interpretation:

Whether the reaction ZnS(s) + HNO3(aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

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Answer 4

Question

Chapter 18, Problem 62E

Interpretation Introduction

(a)

Interpretation:

Whether the reaction Cu2+(aq) + H2S(satd aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium(0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yields carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Interpretation Introduction

(b)

Interpretation:

Whether the reaction Mg2+(aq) + H2S(satd aq) →0.3 M HCl proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄₊ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Interpretation Introduction

(c)

Interpretation:

Whether the reaction PbS(s) + HCl(0.3 M) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. The final solution includes all the water soluble cations.

Interpretation Introduction

(d)

Interpretation:

Whether the reaction ZnS(s) + HNO3(aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

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Answer 5

Chapter 18, Problem 62E

Interpretation Introduction

(a)

Interpretation:

Whether the reaction Cu2+(aq) + H2S(satd aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium(0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yields carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Interpretation Introduction

(b)

Interpretation:

Whether the reaction Mg2+(aq) + H2S(satd aq) →0.3 M HCl proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄₊ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Interpretation Introduction

(c)

Interpretation:

Whether the reaction PbS(s) + HCl(0.3 M) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. The final solution includes all the water soluble cations.

Interpretation Introduction

(d)

Interpretation:

Whether the reaction ZnS(s) + HNO3(aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Answer 6

Chapter 18, Problem 62E

Interpretation Introduction

(a)

Interpretation:

Whether the reaction Cu2+(aq) + H2S(satd aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium(0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yields carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Answer 7

Chapter 18, Problem 62E

Interpretation Introduction

(a)

Interpretation:

Whether the reaction Cu2+(aq) + H2S(satd aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium(0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yields carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Answer 8

Interpretation Introduction

(b)

Interpretation:

Whether the reaction Mg2+(aq) + H2S(satd aq) →0.3 M HCl proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄₊ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Answer 9

Interpretation Introduction

(b)

Interpretation:

Whether the reaction Mg2+(aq) + H2S(satd aq) →0.3 M HCl proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄₊ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Answer 10

Interpretation Introduction

(c)

Interpretation:

Whether the reaction PbS(s) + HCl(0.3 M) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. The final solution includes all the water soluble cations.

Answer 11

Interpretation Introduction

(c)

Interpretation:

Whether the reaction PbS(s) + HCl(0.3 M) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. The final solution includes all the water soluble cations.

Answer 12

Interpretation Introduction

(d)

Interpretation:

Whether the reaction ZnS(s) + HNO3(aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Answer 13

Interpretation Introduction

(d)

Interpretation:

Whether the reaction ZnS(s) + HNO3(aq) → proceeds to a significant extent in the forward direction should be predicted and the products should be determined.

Concept introduction:

Major objective of qualitative cation analysis is identifying the cations present in a mixture. In qualitative cation analysis, cations are categorized into 5 groups depending on the solubilities of their compounds. Pb²⁺, Hg₂²⁺, Ag⁺ belong to the first group which form insoluble chlorides when HCl(aq) is added. When the remaining solution is added with H₂S in an acidic medium (0.3 M HCl), a group of sulfides precipitate. The remaining solution from this is next treated with H₂S in a buffer mixture of NH₃ and NH₄+ ions which then gives a mixture of insoluble hydroxides and sulfides. Filtrate of above reaction mixture is then treated with CO₃^2-. This yield carbonate precipitates of cations. In the final solution, all the water soluble cations include.

Answer 14

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Answer 15

Expert Solution & Answer

Answer 16

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Answer 17

Ch. 18 - Write K10 expressions for the following...Ch. 18 - Write solubility equilibrium equations that are...Ch. 18 - The following K10 values ate found in a handbook....Ch. 18 - Calculate the aqueous solubility, in moles per...Ch. 18 - Prob. 5E Ch. 18 - Which of the following saturated aqueous solutions...Ch. 18 - Fluoridated drinking water contains about 1 part...Ch. 18 - In the qualitative cation analysis procedure, Bi2+...Ch. 18 - Prob. 9E Ch. 18 - A 725mL sample of a saturated solution of calcium...

Solution Summary: The author explains the objective of qualitative cation analysis, which is identifying the solubilities of a mixture.

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Chapter 18 Solutions