Laboratory Manual for Principles of General Chemistry 11 Edition covers two semesters of a general chemistry laboratory program. The material focuses on the lab experiences that reinforce the concepts that not all experimental conclusions are the same and depend on identifying an appropriate experimental procedure, selecting the proper apparatus, employing the proper techniques, systematically analyzing and interpreting the data, and minimizing inherent variables. As a result of “good” data, a scientific and analytical conclusion is made which may or may not “be right,” but is certainly consistent with the data.
Experiments write textbooks, textbooks don’t write experiments.
A student’s scientific literacy grows when experiences and observations associated with the scientific method are encountered. Further experimentation provides additional “cause & effect” observations leading to an even better understanding of the experiment.
The 11th edition’s experiments are informative and challenging while offering a solid foundation for technique, safety, and experimental procedure. The reporting and analysis of the data and the pre- and post-lab questions focus on the intuitiveness of the experiment.
The experiments may accompany any general chemistry textbook and are compiled at the beginning of each curricular unit.
An “Additional Notes” column is included in each experiment’s Report Sheet to provide a space for recording observations and data during the experiment. Continued emphasis on handling data is supported by the “Data Analysis” section.
Preface III
Laboratory Safety and Guidelines 1
Data Documentation 7
Data Analysis 11
Laboratory Techniques and Safety Practices 23
Experiments
Unit Opener 1 Introduction
Dry Lab 1 The Laboratory and SI
Experiment 1 Basic Laboratory Operations
Unit Opener 2 Chemical and Physical Properties
Experiment 2 Identification of a Compound: Chemical Properties
Experiment 3 Water Analysis: Solids
Experiment 4 Percent Water in a Hydrated Salt
Dry Lab 2A Inorganic Nomenclature I. Oxidation Numbers
Dry Lab 2B Inorganic Nomenclature II. Binary Compounds
Dry Lab 2C Inorganic Nomenclature III. Ternary Compounds
Experiment 5 Acids, Bases, and Salts
Unit Opener 3 Atomic and Molecular Structure
Experiment 6 Periodic Table and Periodic Law
Dry Lab 3 Atomic and Molecular Structure
Unit Opener 4 Mole Concept
Experiment 7 Empirical Formulas
Experiment 8 Limiting Reactant
Experiment 9 A Volumetric Analysis
Experiment 10 Vinegar Analysis
Unit Opener 5 Molar Mass of Gases and Solute
Experiment 11 Molar Mass of a Volatile Liquid
Experiment 12 A Carbonate Analysis; Molar Volume of Carbon Dioxide
Experiment 13 Molar Mass of a Solid
Unit Opener 6 Kinetics and Equilibrium Constant
Experiment 14 Factors Affecting Reaction Rates
Experiment 15 A Rate Law and Activation Energy
Experiment 16 An Equilibrium Constant
Unit Opener 7 Acid-Base Equilibrium and Analysis
Experiment 17 LeChâtelier’s Principle; Buffers
Experiment 18 Antacid Analysis
Experiment 19 Potentiometric Analyses
Experiment 20 Alkalinity of a Water Resource
Experiment 21 Hard Water Analysis
Experiment 22 Molar Solubility, Common-Ion Effect
Unit Opener 8 Thermodynamics
Experiment 23 Calorimetry
Experiment 24 Thermodynamics of the Dissolution of Borax
Unit Opener 9 Oxidation-Reduction Systems and Analysis
Experiment 25 Oxidation–Reduction Reactions
Experiment 26 Chemistry of Copper
Experiment 27 Bleach Analysis
Experiment 28 Vitamin C Analysis
Experiment 29 Dissolved Oxygen Levels in Natural Waters
Experiment 30 Galvanic Cells, the Nernst Equation
Experiment 31 Electrolytic Cells, Avogadro’s Number
Unit Opener 10 Metal Double Salts and Complexes
Experiment 32 Synthesis of Potassium Alum
Experiment 33 Transition Metal Complexes
Unit Opener 11 Qualitative Analysis
Experiment 34 Aspirin Synthesis and Analysis
Experiment 35 Paper Chromatography
Experiment 36 Spectrophotometric Metal Ion Analysis
Dry Lab 4 Preface to Qualitative Analysis
Experiment 37 Qual: Common Anions
Experiment 38 Qual I. Na+, K+, NH4+, Mg2+, Ca2+, Cu2+
Experiment 39 Qual II. Ni2+, Fe3+, Al3+, Zn2+
Appendixes
Appendix A Conversion Factors
Appendix B Familiar Names of Common Chemicals
Appendix C Vapor Pressure of Water
Appendix D Concentrations of Acids and Bases
Appendix E Water Solubility of Inorganic Salts