LabNotesC107F2016 - CHEMISTRY 107 LABORATORY NOTES FALL...

CHE 107 Fall 2016 Lab Notes Page 1
CHEMISTRY 107 LABORATORY NOTES FALL 2016
WEAR YOUR SAFETY GLASSES AND LAB APRON AT ALL TIMES WHEN WORKING IN THE
LABORATORY AND WHEN CHECKING ITEMS FROM THE STOCKROOM
GENERAL NOTES FOR ALL EXPERIMENTS:
1. Read the experiment of the day and the corresponding text reference before coming to recitation-lab. For most
experiments there is a digital video posted to the UBLearns course website. Answer the assigned one or two pre-
lab questions. Your responses to these pre-lab questions are due in writing at the beginning of the recitation
period on the day the experiment is scheduled for your lab section on sheets provided in the lab manual
only. This is the only time they will be accepted for credit.
2. For each experiment it is required that you submit a handwritten flow chart in DUPLICATE outlining the steps
and masses to be used in the experiment along with the safety precautions. One copy of the flow chart must be
turned in to your lab instructor at the beginning of pre-lab, the second copy you must retain and refer to during the
pre-lab instruction and conduct of the experiment.
3. Record all data taken during the laboratory experiment directly into your lab manual on the DATA page as you
conduct the experiment.
4. During the lab period your lab instructor will distribute a duplicate DATA sheet. Complete this form and return it
to your lab instructor before you leave the laboratory. Failure to hand in a DATA sheet at the conclusion of the lab
will negate the grading of your lab report. All data on the data sheet must MATCH the data in your lab report! If
data does not match, you will be penalized. The minimum penalties are a grade equal to minus the point value of
the experiment for the first offense and minus 100 points for a second offense.
5. The following equipment must be shared throughout the semester and must be returned to its proper location at the
end of each lab period:
Burets - Return to stockroom before it closes.
Büchner funnels - Return to stockroom before it closes.
Leveling bulbs - Return to stockroom before it closes.
Buret clamps -Place on shelf marked "For Buret Clamps"
Rubber tubing - Return to stockroom before it closes.
Bunsen burners - Place on shelf marked "For Bunsen Burners".
Tripods - Place on shelf marked "For Tripods".
Ringstands - Place on shelf marked "For Ringstands".
Your assistance in returning each of the above items to their proper location will insure this equipment will be
available for your use the next lab period.
6. For experiments that involve an unknown sample, record the unknown number in the Data Section of your lab
report immediately after you receive the unknown sample. In addition record the number on the duplicate data
sheet. You will usually find the unknown number written on the cork.