2CLabManual201303 - Chemistry 2C Laboratory Manual...

Chemistry 2C
Laboratory Manual
Department of Chemistry
University of California - Davis
Davis, CA 95616
Spring 2013

Student Name ______________________ Locker Number____________
Laboratory Information
Teaching Assistant's Name _______________________
Laboratory Section Number _______________________
Laboratory Room Number _______________________
Dispensary Room Number 1060 Sciences Lab Building
Location of Safety Equipment Nearest to Your Laboratory
Safety Shower _______________________
Eye Wash Fountain _______________________
Fire Extinguisher _______________________
Fire Alarm _______________________
Safety Chemicals _______________________

i
TABLE OF CONTENTS
PREFACE ................................................................................................................................... ii
ACKNOWLEDGMENTS ........................................................................................................... iii
INTRODUCTION ....................................................................................................................... iv
A) Time Allocation and Grading of the Experiments ................................................... iv
B) Safety Policy ............................................................................................................ v
EXPERIMENTS:
Redox Titrations .......................................................................................................................... 1
Nomenclature of Transition Metal Complexes ........................................................................... 9
Electrochemical Cells .................................................................................................................. 11
EDTA Titrations .......................................................................................................................... 23
Introduction to Inorganic Qualitative Analysis ........................................................................... 31
Synthesis of a Transition Metal Coordination Complex ............................................................. 39
A Spectroscopy Study ................................................................................................................. 47
A Kinetics Study ......................................................................................................................... 67
Determination of Vitamin C Content Via a Redox Titration ........................................................ 75
APPENDIX:
A) General Experimental Guidelines ............................................................................ A-1
1. Pre-Laboratory Preparation .......................................................................... A-1
2. Data Collection ............................................................................................. A-1
3. Unknowns ..................................................................................................... A-1
4. Writing A Laboratory Report ....................................................................... A-1
5. Statistical Treatment of Data ........................................................................ A-2
B) On-line Pre- & Post-Laboratory Procedures ............................................................ A-5
C) Late Reports & Make-Up Policy .............................................................................. A-12
D) Common Laboratory Procedures ............................................................................. A-13
E) Maps ......................................................................................................................... A-21
F) Dispensary Procedures .............................................................................................. A-23
1. Dispensing Policies ......................................................................................... A-23
2. Waste Labels ................................................................................................. A-25
3. :Locker Inventory ......................................................................................... A-27

ii
PREFACE
Chemistry is an experimental science. Thus, it is important that students of chemistry do
experiments in the laboratory to more fully understand that the theories they study in
lecture and in their textbook are developed from the critical evaluation of experimental
data. The laboratory can also aid the student in the study of the science by clearly
illustrating the principles and concepts involved. Finally, laboratory experimentation
allows students the opportunity to develop techniques and other manipulative skills that
students of science must master.
The faculty of the Chemistry Department at UC Davis clearly understands the importance
of laboratory work in the study of chemistry. The Department is committed to this
component of your education and hopes that you will take full advantage of this
opportunity to explore the science of chemistry.
A unique aspect of this laboratory program is that a concerted effort has been made to use
environmentally less toxic or non-toxic materials in these experiments. This was not only
done to protect students but also to lessen the impact of this program upon the
environment. This commitment to the environment has presented an enormous
challenge, as many traditional experiments could not be used due to the negative impact
of the chemicals involved. Some experiments are completely environmentally safe and
in these the products can be disposed of by placing solids in the wastebasket and
solutions down the drain with copious amounts of water. Others contain a very limited
amount of hazardous waste and in these cases the waste must be collected in the proper
container for treatment and disposal. The Department is committed to the further
development of