CHEM 101L FINAL QUESTIONS AND ANSWERS
hanging on the side of a bench near the door
A small vial of flammable liquid spills and ignites in the hood. Your TA asks you to bring the fire extinguisher while he moves students back from the hood, so you look for the fire extinguisher _______________...
hanging on the side of a bench near the door
A small vial of flammable liquid spills and ignites in the hood. Your TA asks you to bring
the fire extinguisher while he moves students back from the hood, so you look for the
fire extinguisher ____________________.
proceed to the safety shower located just inside the door to the hallway, remove
both the lab coat and shirt, and rinse your skin for 15 minutes.
While carrying a vial of an organic liquid from the hood, it drops on the bench and
shatters, soaking the front of your lab coat and shirt. You should immediately
____________
exit the lab and proceed to the stairs nearest the Venable parking lot and
Columbia Street. After exiting on the ground floor you should meet your TA on
the far side of the driveway to the parking lot so that you can be included in a
head count of those safely evacuated, keeping the drive clear for emergency
vehicles.
In the event the fire alarm for Morehead Laboratory sounds, you must evacuate the
building. Assuming the emergency does not interfere with your best route, you
should__________
All of these are cases when you should first remove your gloves.
When working in lab, you should always remove your gloves when:
I. Typing on your laptop keyboard
II. Leaving the laboratory
III. Picking up your pen to record observations in the lab notebook.
IV. Using the doorknob
V. Using the laboratory phone
VI. Adjusting your hat/hair clip
VII. Scratching your nose.
meet at the correct designated rally point for your lab section and look for your
TA and classmates there, where you will receive additional instructions.
You arrive to Morehead Laboratories two minutes after your lab has officially started
and you do not want to miss the quiz. As you enter the building you notice that the fire
alarm is sounding. The best way to be sure you will be able to take the lab quiz is to
_________________________
20.35 mL
The volume marking at the sealed bottom of a buret segment is 58.60 mL, and has
markings for every 0.1 mL. When water is added, the bottom of the meniscus sits about
halfway between the line for 38.3 mL and the next mark up. What volume of water is
contained in the buret segment?
3
When calculating the displacement volume of the thermometer, the volume reading on
the buret is 28.47 mL without the thermometer, and 26.82 mL with the thermometer in
place. How many significant figures should be recorded for the displacement volume of
the thermometer?
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