Chemistry

• An attempt has been made to rearrange (and revise) the chapters on laboratory practices and the practical aspects of qualitative analysis.

• The chapters that appear in Part II — the theory of qualitative analysis — have all been revised.

• Early introduction to the principles of “green chemistry” (using fewer chemicals and smaller volumes of solution using a benign solvent) – Gives students experience in semimicro methods of qualitative analysis.

• “Less than macro” trends in laboratory instruction reflected in experimental procedures – Emphasizes small quantities of chemicals, simpler equipment, and fewer hazards.

• REVISED! End-of-chapter questions – Anticipate some of the more practical problems (in Part II) and illustrate the principles developed.

• A list of the required equipment in Appendix III:

– Introduces students to each piece of equipment and special technique at the time it is first used in the plan of analysis.

– The equipment is of the standard Semimicro type available at most supply houses.

– Only a few items need to be prepared, but these can be made by the student.

• A list of all reagents used with directions for preparing all solutions in Appendix III.

• NEW! — Fume tests have been incorporated where appropriate as a verification method.

• NEW! — More emphasis has been placed on the usefulness of the role of identifying anions in the qualitative analysis of cations.

• Net equations used to describe reactions which occur in solution in conformity with the principle that equations should indicate the predominate species in the system. No effort has been made to present the detailed mechanisms of the more complex reactions.

• NEW! — Fume tests have been incorporated where appropriate as a verification method.

• NEW! — More emphasis has been placed on the usefulness of the role of identifying anions in the qualitative analysis of cations.

CONTENTS

1 The Strategy of Qualitative Analysis

Summary

Part II CONCEPTS IN QUALITATIVE ANALYSIS

2 The Nature of Chemical Reactions

Kinetics

Chemical Equilibrium

Thermodynamics

Summary

Physical Properties of Compounds

Classification of Chemical compounds

The Ionization of Water

Acids and Bases

Concentration Units

Solubility

Equilibrium Processes Involving Sparingly Soluble Ionic Substances

Colloidal dispersions

Lewis Theory of Chemical Combinations

Nomenclature

Theoretical Considerations

Stability of Complex Ions

The Role of Complex Ions in Qualitative Analysis

7   The Practical Aspects of Qualitative Analysis

The Periodic Table

Chemical Reactions

Equilibrium Considerations

Formation of Precipitates

Dissolving Precipitates

Laboratory Safety

Summary of Laboratory Work

Record of Laboratory Work and Laboratory Reports

Laboratory Procedures

The Chemistry of the Silver Group Ions

Precipitation and Analysis of the Silver Group

Separation of Lead from Silver and Mercury (I)

Separation and Detection of Silver and Mercury

The Chemistry of the Copper-Arsenic Group Ions

Separation of the Copper Subgroup from the Arsenic Subgroup

Separation of Mercury from Lead, Bismuth, Copper, and Cadmium

Separation of Lead from Bismuth, Copper, and Cadmium

Separation of Bismuth from Copper and Cadmium

Detection of Copper and Cadmium

Separation of Arsenic from Antimony and Tin

The chemistry of the Aluminum-Nickel Group Ions

Precipitation and Analysis of the Aluminum-Nickel Group

Separation of the Aluminum Subgroup from the Nickel Subgroup

Detection of Iron, Cobalt, Nickel, and Manganese

The Chemistry of the Barium-Magnesium Group Ions

Detection of Ammonium Salts

The Separation and Detection of Barium

The Separation and Detection of Calcium

Detection of Sodium and Potassium

Examination of the Solid

Solubility of the Salt

Reactions with Specific Reagents

Preliminary Experiments

Analysis of Unknown Salt

Examination of the Solid

Dissolution of the Solid

Determine What Cations Are Present

Treatment of the Unknown with Class Reagents

Specific Tests for Anions

I Brief Review of Oxidation Numbers

II   Solution of Quadratic Equations

III Reagents and Equipment Used

Index of Procedures

Qualitative Inorganic Analysis  (Chemistry)
General Chemistry Laboratory  [QUALITATIVE ANALYSIS]   (Chemistry)

Semimicro Qualitative Analysis, Eighth Edition, addresses two important current issues in chemistry education: the need for students to acquire a knowledge of descriptive chemistry and a growing interest by teaching chemists to expose students to the concepts of "green chemistry."

Although descriptive chemistry may be difficult to define precisely, most chemists would agree that a major component of this subject—descriptive chemistry—is the chemistry of the more common elements and their compounds, especially as this occurs in aqueous solutions.

"Green chemistry," briefly, is an expression of doing chemistry—laboratory work—that minimizes the use of chemicals, uses benign solvents (like water); and attends to the problems of handling "wastes" in a non-polluting way.

The first part of this classic work discusses the general strategy of qualitative analysis. It then systematically surveys the nature of chemical compounds including ionic, covalent and coordination of compounds, and the chemical reactions they undergo.

The second part provides a series of laboratory experiments to perform that have been tested over time, and reviewed to insure current treatment in terms of chemical safety and disposal. Key chemical concepts are highlighted along with important safety information. The discussion in Part I provides a firm foundation for understanding the practical work carried out in Part II.

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