Chemical Principles in the Laboratory,
12th Edition

1. The Densities of Liquids and Solids.
2. Resolution of Matter into Pure Substances, I. Paper Chromatography.
3. Resolution of Matter into Pure Substances, II. Fractional Crystallization.
4. Determination of a Chemical Formula.
5. Identification of a Compound by Mass Relationships.
6. Properties of Hydrates.
7. Analysis of an Unknown Chloride.
8. Verifying the Absolute Zero of Temperature—Determination of the Atmospheric Pressure.
9. Molar Mass of a Volatile Liquid.
10. Analysis of an Aluminum-Zinc Alloy.
11. The Atomic Spectrum of Hydrogen.
12. The Alkaline Earths and the Halogens—Two Families in the Periodic Table.
13. The Geometric Structure of Molecules—An Experiment Using Molecular Models.
14. Heat Effects and Calorimetry.
15. The Vapor Pressure and Heat of Vaporization of a Liquid.
16. The Structure of Crystals—An Experiment Using Models.
17. Classification of Chemical Substances.
18.Some Nonmetals and Their Compounds—Preparations and Properties.
19. Molar Mass Determination by Depression of the Freezing Point.
20. Rates of Chemical Reactions, I. The Iodination of Acetone
21. Rates of Chemical Reactions, II. A Clock Reaction.
22. Properties of Systems in Chemical Equilibrium—Le Châtelier’s Principle.
23. Determination of the Equilibrium Constant for a Chemical Reaction.
24. The Standardization of a Basic Solution and the Determination of the Molar Mass of an Acid.
25. pH Measurements—Buffers and Their Properties.
26. Determination of the Solubility Product of Ba(IO3).
27. Relative Stabilities of Complex Ions and Precipitates Prepared from Solutions of Copper(II).
28. Determination of the Hardness of Water.
29. Synthesis and Analysis of a Coordination Compound.
30. Determination of Iron by Reaction with Permanganate—A Redox Titration.
31. Determination of an Equivalent Mass by Electrolysis.
32. Voltaic Cell Measurements.
33. Preparation of Copper(I) Chloride.
34. Development of a Scheme for Qualitative Analysis.
35. Spot Tests for Some Common Anions.
36. Qualitative Analysis of Group I Cations.
37. Qualitative Analysis of Group II Cations.
38. Qualitative Analysis of Group III Cations.
39. Identification of a Pure Ionic Solid.
40. The Ten Test Tube Mystery.
41. Preparation of Aspirin.
42. Rate Studies on the Decomposition of Aspirin.
43. Analysis for Vitamin C.
44. Fundamentals of Quantum Mechanics.
Appendix I: Vapor Pressure and Density of Liquid Water.
Appendix II: Summary of Solubility Properties of Ions and Solids.
Appendix IIA: Some Properties of the Cations in Groups I, II, and III.
Appendix III: Standard Atomic Weights of the Elements (Scaled relative to Carbon-12 = 12 g/mol).
Appendix IV: Making Measurements—Laboratory Techniques.
Appendix V: Mathematical Considerations—Significant Figures and Making Graphs.
Appendix VI: Suggested Locker Equipment.
Appendix VII: Introduction to Excel.
Appendix VIII: Introduction to Google Sheets.
Appendix IX: Statistical Treatment of Laboratory Data.

• Emil J. Slowinski

  Emil J. Slowinski is an Emeritus DeWitt Wallace Professor of Chemistry at Macalester College. He earned a B.S. degree from Massachusetts State College in 1946 and a Ph.D. in physical chemistry from the Massachusetts Institute of Technology in 1949. He taught at Swarthmore College, 1949-1952; the University of Connecticut, 1952-1964; and Macalester College, 1964-1988. His sabbatical leaves were at Oxford University in 1960 and the University of Warsaw in 1968. He is a co-author, with Bill Masterton and/or Wayne Wolsey, of more than 25 books on various areas of general chemistry. He was actively involved in all editions of CHEMICAL PRINCIPLES IN THE LABORATORY up through the 9th Edition, and though now retired from active writing, still offers insights, advice and support to his coauthors.

• Wayne C. Wolsey

  Wayne C. Wolsey, an inorganic chemist, received his B.S. from Michigan State University in 1958 and his Ph.D. from the University of Kansas in 1962. He joined the Macalester College faculty in 1965 and is now in "semi-retirement." His last three sabbaticals were spent at the Oak Ridge National Laboratory. In 2001-2002, he investigated various complexing agents for their effectiveness in dissolving calcium oxalate kidney stones, in collaboration with a former student, now a urologist. He has received various awards, including the Minnesota College Science Teacher of the Year in 1989; Macalester's Thomas Jefferson Award in 1993; designation as a MegaMole contributor to Minnesota Chemical Education in 1997; and an award from the Minnesota State AAUP Conference in 2001 for his support of academic freedom and shared governance. He remains professionally active in a number of scientific organizations.

• Robert Rossi

  Robert C. Rossi is the Laboratory Supervisor in the Chemistry Department at Macalester College. He obtained a B.S. degree in chemical engineering from the University of Wisconsin - Madison in 1993 and upon graduation joined the Peace Corps, serving in the Fiji Islands. He then taught and carried out applied photoelectrochemistry and semiconductor physics research at the California Institute of Technology, earning a Ph.D. in 2001. After several years teaching as a visiting professor at Carleton College, he moved to Macalester College, where he has been since 2003. In 2011 he became a co-author of CHEMICAL PRINCIPLES IN THE LABORATORY, first writing for the 10th Edition.

• ENHANCED EXPERIMENTS: All experiments have been edited to improve the clarity of the instructions and explanations. Careful attention to the scientific units, terminology, and symbology ensures greater consistency with most general chemistry texts.

• ADVANCE STUDY ASSIGNMENTS: These assignments--many revised or updated in this edition--include sample questions, usually involving calculations, that are similar to those required in processing the data obtained in each experiment. Students who complete the ASA's prior to coming to lab should not have any trouble working up the data they actually observe in the lab session.

• NEW EXPERIMENT: The 12th Edition features a new experiment, entitled "Fundamentals of Quantum Mechanics," which provides an accessible and hands-on introduction to the concept and general principles of quantized behavior. It was developed to address the steady increase in quantum chemistry coverage in chemistry courses, as this topic has become less exotic and more mainstream, all the while remaining something that few students easily engage with, and for which little accessible lab work has been generally available.

• CONTENT UPDATES: Key updates include: mention of safe agitation of the test tube has been added in Experiment 10; the terminology in Experiment 14 now treats "heat" as exclusively an energy transfer, not a property of matter per the debunked caloric theory, and key terms have been changed to "specific heat capacity" and "adiabatic calorimeter"; the text of Experiment 15 has undergone a major overhaul and a figure depicting the "device" has been added to make the experimental approach and calculations more readily understood; and the procedure in Experiment 19 has been streamlined and clarified.

• GOOGLE SHEETS AND EXCEL COVERAGE: Appendix VIII introduces Google Sheets, which is a free alternative to Excel. This section explains how students can use Google Sheets to simplify making calculations. Appendix VII remains for Excel users and describes how to use Excel software in making calculations in several experiments.

• FLEXIBILITY: Labs are easily modified for use as guided inquiry. Each lab gives students a starting point and the information they need to create and conduct the experiment.

• A PROVEN APPROACH: This laboratory manual's direct approach has made it a household name in the General Chemistry laboratory market. Each edition's fully tested experiments are consistently updated to maintain the integrity of this bestselling lab manual.

• STUDENT-FRIENDLY: Offering complete coverage of basic chemistry principles, this manual presents topics clearly in an easy-to-understand manner, while requiring students to read and demonstrate understanding of the material.

• LABSKILLS and PRELABS v2 INTEGRATION: Featuring chemist-developed content, LabSkills PreLabs v2 integrates seamlessly with OWLv2, the most trusted online learning solution for chemistry. With detailed, instant feedback and interactive learning resources, students get the help they need when they need it. Discover the power of LabSkills PreLabs v2 in OWLv2 and take learning to a higher level.

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Instructor's Companion Website for Slowinski/Wosley/Rossi's Chemical Principles in the Laboratory
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