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ChemLab Manual - Chemistry 1800U Laboratory Manual Winter...

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i Chemistry 1800U Laboratory Manual Winter, 2012 Senior Laboratory Instructor: Richard Bartholomew UA 4070 [email protected] Table of Contents LABORATORY CALENDAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SAFETY RULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 SAFETY PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 GOOD LABORATORY PRACTICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 LABORATORY REPORTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 PROCESS FOR RE-SCHEDULING MISSED LABORATORIES . . . . . . . . . . . . . . . . . . . . . . 17 WEIGHING TECHNIQUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 VOLUMETRIC TECHNIQUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 OPERATION OF THE BUNSEN BURNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 SUCTION FILTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 SIGNIFICANT FIGURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 LABORATORY REPORT RECEIPT SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 SAFETY ACKNOWLEDGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 LOCKER EQUIPMENT LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 1. LABORATORY SAFETY AND ORIENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
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ii 2. ATOMIC EMISSION SPECTRA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 3. MEASUREMENT OF THE IDEAL GAS CONSTANT, ‘R’ . . . . . . . . . . . . . . . . . . . . . . . . . 64 4. EFFECT OF CONCENTRATION AND TEMPERATURE ON REACTION RATE . . . . . . 80 5. THERMOCHEMISTRY AND THE MEASUREMENT OF THE ENTHALPY OF DISSOCIATION FOR ACETIC ACID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 6. ELECTROCHEMISTRY AND VOLTAIC CELLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
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1 LABORATORY CALENDAR Winter, 2012 Laboratories begin January 13, 2012. The exact dates of your laboratories depend on the CRN in which you are registered. These dates can be found on your schedule or on the preview of available courses on MyCampus. CRN’s 72282 and 72283 : Dates Experiment January 13 1 - Laboratory Safety and Orientation January 20 2 - Atomic Spectroscopy February 3 3 - Effect of Concentration and Temperature on Reaction Rate February 17 4 - Measurement of the Ideal Gas Constant March 9 5 - Thermochemistry August 23 6 - Electrochemistry
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2 All other CRN’s: Dates Experiment January 16 - 27 1 - Laboratory Safety and Orientation January 30 - February 10 2 - Atomic Spectroscopy February 13 - 16 3 - Effect of Concentration and Temperature on Reaction Rate February 20 - 24 Reading Week - no labs February 27 - March 2 3 - Effect of Concentration and Temperature on Reaction Rate March 5 - 16 4 - Measurement of the Ideal Gas Constant March 19 - 30 5 - Thermochemistry April 2 - 13 6 - Electrochemistry
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UOIT Chem. 1800U, S11; Introduction - 8.13 3 SAFETY RULES Safety in the laboratory is of the utmost importance to your instructors and also must be to you, the student. Everybody’s safety depends on each student adhering to the safety rules and procedures outlined in this manual. The following rules must be obeyed and will be rigorously enforced. 1. Students arriving more than 10 minutes late to a laboratory period will not be allowed access to the laboratory. Students must arrive promptly to receive instructions about the safe conduct of the experiments. 2. ALL students must wear eye protection. For people with eyeglasses it must be worn over regular glasses. This rule will be vigorously enforced. 3. Contact lenses should not be worn in the chemistry laboratory. 4. All students must wear a lab coat. A 100% cotton lab coat is best. Lab coats protect skin and clothing from chemicals. The front of he lab coat should be buttoned while working in the laboratory. 5. Open shoes or sandals are forbidden. They expose the feet to spilled chemicals.
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