Table of Contents-Book B
Page
Unit 31-Kinetics-Thiosulfate and Hydrochloric Acid...... 1
Unit 32-Actual Rate Constants and Clock Reactions ...... 9
Unit 33-Spectrophotometric Measurement of Rate Law ...... 17
Unit 34-LeChâtelier’s Principle ...... 25
Unit 35-Equilibrium Constant Ka and Kb and Buffers...... 39
Unit 36-Formula and Formation Constant for a Complex Ion ...... 49
Unit 37-Hess’s Law...... 63
Unit 38-Entropy and Gibb’s Free Energy ...... 71
Unit 39-Synthesis of Aspirin and the Using of the Melting Point ...... 83
Unit 40-Electrochemistry ...... 79
Unit 41-Qualitative Analysis, Analyitical Group 1 ,Ag+, Pb+2, Hg2+2...... 97
Unit 42-Qualitative Analysis, Analytical Group 2, Hg+2,Cu+2,Cd+2, Bi+3 ...... 103
Unit 43-Qualitative Analysis, Analytical Group 3, Co+2,Ni+2,Fe+3,Mn+2,Al+3,Cr+3,Zn+2. . . 111
Unit 44-Qualitative Analysis, Analytical Groups 4/5, Ca+2,Sr+2,Ba+2,Mg+2, Na+,K+,NH4+ . 121
Unit 45-Qualitative Analysis, General Unknown...... 129
Unit 46-Amino Acid Determinations ...... 133
Unit 47-Mohr Titration-Halide Determination ...... 147
Unit 48-Sugar Determinations...... 153
Unit 49-Cirus Oil Determination, Scott Method ...... 163
Unit 50-Kjeldahl/Monier Williams Analyses ...... 171
Preface
Quantitative and Qualitative Laboratory Experiments for Science Majors is designed to provide experience for science and engineering majors in the chemical laboratory. It is written to follow most general chemistry courses. It begins with basic measurement and crescendos in conjunction with the lecture portion of the course. It is designed to be an almost stand-alone text. It contains all the background material for each experiment in the discussion portion of each unit or experiment. This will be helpful when one person teaches the lecture portion of the course while another teaches the laboratory portion. This is commonly done in small community or junior colleges where part-time personnel are employed. It is also applicable to larger universities that use graduate students to teach laboratory sections while the professor teaches the lecture portion. This has the advantage of providing the student with a broader exposure to those with chemical experience as well as to increase the efficiency of the use of the instruction staff.
Some experiments build on previous units. If the order of the units is changed, particular attention should be paid to references to previous experiments. The first 30 units designed to be used during the first semester of general chemistry. Units 31-40 are further investigations in more advanced topics designed to be used in a second semester of general chemistry. Units 41-45 center on a series of qualitative analysis activities. This is considered the focal point of the second semester laboratory activities. Upon completion of unit 45, a series of advanced analytical activities are available. It has been found that replacing units 47-50 with a research project has great benefits to the student. It provides the student with the opportunity to take the things that he or she has learned and apply them to their particular interests or major.
Some of the resources to accompany the lab manual include answers to Prelab Exercises and Quizzes that cover the laboratory experiments and related information. These resources, as well as ideas and suggestions, can be directed to the authors. Contact information can be found on the title page of the manual. A supplementary lab notebook may be used for lab reports and graphs.
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