Inquiry Experiments for General Chemistry: Practical Problems and Applications is a lab manual designed for students in introductory chemistry courses. The manual is the result of several projects funded primarily by the National Science Foundation and developed chiefly at the University of Puerto Rico at Cayey, Inter American University of Puerto Rico, Metropolitan Campus, and the University of Michigan at Ann Arbor. The experiments have been thoroughly tested with undergraduate non-chemistry and non-science majors as well as with pre-med, engineering, science (including chemistry), and future teachers majors. Successful use of the experiments has occurred outside the institutions of origin including secondary institutions, community colleges and universities.
Table of Contents:
Unit 1 Scientific Method
Experiment 1-1 How Long Can a Bubble Last? 1
Experiment 1-2 Are All Pennies the Same? 19
Unit 2 Stoichiometry
Experiment 2-1 How Much Hydrogen? 39
Experiment 2-2 How Much is Too Much? 55
Unit 3 Solutions, Atomic Structure, and Periodicity
Experiment 3-1 What Makes a Solution Colored or Colorless? 67
Experiment 3-2 Are There Property Patterns? 87
Experiment 3-3 What Factors Affect Color Intensity? 107
Unit 4 Reactivity and Periodicity
Experiment 4-1 What Factors Affect the Solubility of Ions? 121
Experiment 4-2 Can Toxic Ions Be Removed from Water by Precipitation? 143
Unit 5 Gases
Experiment 5-1 How Do Gas Volumes Change as We Ascend and Descend? 163
Unit 6 Thermochemistry
Experiment 6-1 Which Salts Make Good Cold Packs and Hot Packs? 183
Experiment 6-2 How is Heat Measured Indirectly? 201
Unit 7 Structure and Property Relationsips
Experiment 7-1 Do Like Repel or Attract? 225
Unit 8 Equilibrium
Experiment 8-1 How Can a Chemical Equilibrium Be Shifted? 241
Experiment 8-2 How Do Soaps Compare in Controlling Malodor? 261
Unit 9 Acids and Bases
Experiment 9-1 Is It Acidic, Basic, or Neutral? 281
Experiment 9-2 Are Acid-Base Properties in Consumer Products Predictable? 299
Unit 10 Oxidation and Reduction
Experiment 10-1 Do Chemicals Duplicate the Effects of a Battery? 317
Experiment 10-2 Which Metal is Appropriate for Food and Beverage Storage? 337
Unit 11 Electrochemistry
Experiment 11-1 Which Metals Provide the Best Voltage? 353
Experiment 11-2 Why Did My Watch Stop Suddenly? 367
Experiment 11-3 Why is a ‘‘Harley’’ Chrome-Plated? 387
Unit 12 Kinetics
Experiment 12-1 How Long Will It Take? 401