Chem 241L Final UNC
In the cabinets (labeled "for backpack storage") under the Where do you place your backpack when you come to lab?
whiteboard in Rooms 404/405 OR in the storage cabinets
under the non-hood benches in the middle of the room in
Rooms 400/401.
Ask your TA where you should dispose of the chemical. If you are unsure about where to dispose of the waste from your experiment. What
is the proper procedure you should follow?
For liquid waste, ensure the level of liquid is below the top What are things that you should check when disposing of chemical waste (select all
of the bottle. that apply)
Be sure to open the funnel on the liquid waste or the lid on
the solid waste bucket before disposing of your chemicals.
Be sure that the lid of the waste container is completely
closed, even if you know you will be returning to dispose of
additional chemicals in a minute.
Inform the TA and ask for assistance. If a piece of glassware breaks during your experiment, the first thing you should do
is:
In the designated glass waste container in the lab room. When you are finished using a disposable glass Pasteur pipette, where should you
dispose of it?
You should immediately let your TA know that there is no If there is no chemical waste container in the main lab hood, what should you do?
waste container.
You spill dilute acid on your arm. Which of the following situations should you report to your TA if they occur in lab
You or someone else in lab feels faint and/or has fainted (select all that apply)?
You burned your finger on a hot piece of glass
Even though you were supposed to leave them on, you
removed your goggles for a minute at your lab bench and
in the process you think you got something in your eye.
true The safety shower should only ever be used if a large volume of chemical is spilled
on your skin.
at the front sink The eyewash in my lab is located:
Tell your TA immediately so they can fill out an accident You accidentally prick your finger with the end of a glass pipette, drawing a tiny drop
report, then rinse your finger very well (15 minutes) with of blood. What is the correct response?
water, and put a band-aid on the injury.
When leaving the lab room with chemicals, I must place Which of the following statements is/are correct for leaving the lab room
them on a cart, or in a secondary container to prevent
chemicals from spilling in the hallways/elevators.
When leaving the lab room with chemicals it is ok to carry
them in my hand throughout the hallways/elevators.
false While listening to your pre-lab lecture, you are not required to wear your safety
goggles.
long pants, long dress, sneakers, shirts with sleeves, and Proper lab attire for chemistry lab:
socks to cover exposed ankles
, Chem 241L Final UNC
Return to your residence to get the proper clothing, if time It's five minutes before your lab period begins and you realize that you are not
permits. properly dressed for lab. You could (choose all correct options):
Go to Morehead 102 and purchase a pair of scrubs.
Ask a friend to bring proper clothing, if time permits.
true Your lab coat must stay in the lab room the entire semester?
the lab room and in the GC lab room In which of the following locations are you required to have your lab goggles on and
covering your eyes at all time?
lab manual, SDS, or check with TA if unsure There are many hazards associated with chemicals. Which of the following are the
proper procedure to learn about the hazards you may encounter in lab (select all
that apply).
always add acid (slowly add acid to water) What is the correct way to mix water and acid?
I am not allowed to eat anything while in the lab room. Which of the following statements is correct about eating in the lab?
true My cell phone should remain put away at ALL times while in the lab room except
when using it as a tool for the experiment.
true Safety is always my number 1 priority in lab!
You must find someone on the lab staff to accompany you You remember that you left your lab manual in your lab room yesterday after leaving
into the lab room to pick up the manual that you left Morehead. You stop by the lab room the next day before labs start and find that
behind. your lab room is open and no chemical work is being done. Which of the below
You may email your TA and ask if they can go to the lab statements are true?
room and pick up your manual or meet you to escort you to
the lab room.
Pour a small amount into a beaker or flask, cover and When obtaining reagents from the main lab hood for your experiment, which of the
bring it back to your lab bench. following indicated the proper technique?
false You are permitted to have a bottle of water outside your book bag in the lab room as
long as it is securely capped or has a lid
you should never sit on the floor in Morehead Labs Where and when is it okay to sit in the floor in Morehead Labs? (Select all that
apply)
goggles and lab coats What is the given PPE for 241L?
no, they should remain closed at all times Can waste containers ever be left open?
, Chem 241L Final UNC
carts or rubber carriers What should be used to transport chemicals?
eyewash station, safety shower, chemical fume hood, first What is the safety equipment in the room?
aid kit, and fire extinguisher
they should be rubber soled and fully enclose the foot Explain shoes PPE
they must cover the entire upper body including shoulders Explain shirts PPE
and can't have holes or mesh
lightly-used gloves should be recycled in the cardboard When should gloves be recycled or trashed?
glove recycling box and dirty gloves should go in the solid
waste container in the lab hood
chemical, tripping, and fire hazards (also the prep-staff Why should you never sit in the hallways?
needs to get through with carts and equipment)
calibration process of relating an actual physical quantity to the quantity indicated on the scale
of an instrument
calibration What increases the accuracy of a measurement?
correction factor adjustment that is necessary for physical quantity to equal quantity indicated on the
scale of an instrument
tolerance acceptable variation in precision
accuracy, repeatability, and reliability of measurements Calibration allows us to maintain ___, ___, and ___
gravimetric analysis What was used to calibrate the micropipette in Exp 4?
don't turn the pipette outside its listed volumetric range What is the most important rule when using a micropipette?
push to the first stop and release How do you draw up liquid with a micropipette?
push to the second stop and release How do you dispense of liquid with a micropipette?
In the cabinets (labeled "for backpack storage") under the Where do you place your backpack when you come to lab?
whiteboard in Rooms 404/405 OR in the storage cabinets
under the non-hood benches in the middle of the room in
Rooms 400/401.
Ask your TA where you should dispose of the chemical. If you are unsure about where to dispose of the waste from your experiment. What
is the proper procedure you should follow?
For liquid waste, ensure the level of liquid is below the top What are things that you should check when disposing of chemical waste (select all
of the bottle. that apply)
Be sure to open the funnel on the liquid waste or the lid on
the solid waste bucket before disposing of your chemicals.
Be sure that the lid of the waste container is completely
closed, even if you know you will be returning to dispose of
additional chemicals in a minute.
Inform the TA and ask for assistance. If a piece of glassware breaks during your experiment, the first thing you should do
is:
In the designated glass waste container in the lab room. When you are finished using a disposable glass Pasteur pipette, where should you
dispose of it?
You should immediately let your TA know that there is no If there is no chemical waste container in the main lab hood, what should you do?
waste container.
You spill dilute acid on your arm. Which of the following situations should you report to your TA if they occur in lab
You or someone else in lab feels faint and/or has fainted (select all that apply)?
You burned your finger on a hot piece of glass
Even though you were supposed to leave them on, you
removed your goggles for a minute at your lab bench and
in the process you think you got something in your eye.
true The safety shower should only ever be used if a large volume of chemical is spilled
on your skin.
at the front sink The eyewash in my lab is located:
Tell your TA immediately so they can fill out an accident You accidentally prick your finger with the end of a glass pipette, drawing a tiny drop
report, then rinse your finger very well (15 minutes) with of blood. What is the correct response?
water, and put a band-aid on the injury.
When leaving the lab room with chemicals, I must place Which of the following statements is/are correct for leaving the lab room
them on a cart, or in a secondary container to prevent
chemicals from spilling in the hallways/elevators.
When leaving the lab room with chemicals it is ok to carry
them in my hand throughout the hallways/elevators.
false While listening to your pre-lab lecture, you are not required to wear your safety
goggles.
long pants, long dress, sneakers, shirts with sleeves, and Proper lab attire for chemistry lab:
socks to cover exposed ankles
, Chem 241L Final UNC
Return to your residence to get the proper clothing, if time It's five minutes before your lab period begins and you realize that you are not
permits. properly dressed for lab. You could (choose all correct options):
Go to Morehead 102 and purchase a pair of scrubs.
Ask a friend to bring proper clothing, if time permits.
true Your lab coat must stay in the lab room the entire semester?
the lab room and in the GC lab room In which of the following locations are you required to have your lab goggles on and
covering your eyes at all time?
lab manual, SDS, or check with TA if unsure There are many hazards associated with chemicals. Which of the following are the
proper procedure to learn about the hazards you may encounter in lab (select all
that apply).
always add acid (slowly add acid to water) What is the correct way to mix water and acid?
I am not allowed to eat anything while in the lab room. Which of the following statements is correct about eating in the lab?
true My cell phone should remain put away at ALL times while in the lab room except
when using it as a tool for the experiment.
true Safety is always my number 1 priority in lab!
You must find someone on the lab staff to accompany you You remember that you left your lab manual in your lab room yesterday after leaving
into the lab room to pick up the manual that you left Morehead. You stop by the lab room the next day before labs start and find that
behind. your lab room is open and no chemical work is being done. Which of the below
You may email your TA and ask if they can go to the lab statements are true?
room and pick up your manual or meet you to escort you to
the lab room.
Pour a small amount into a beaker or flask, cover and When obtaining reagents from the main lab hood for your experiment, which of the
bring it back to your lab bench. following indicated the proper technique?
false You are permitted to have a bottle of water outside your book bag in the lab room as
long as it is securely capped or has a lid
you should never sit on the floor in Morehead Labs Where and when is it okay to sit in the floor in Morehead Labs? (Select all that
apply)
goggles and lab coats What is the given PPE for 241L?
no, they should remain closed at all times Can waste containers ever be left open?
, Chem 241L Final UNC
carts or rubber carriers What should be used to transport chemicals?
eyewash station, safety shower, chemical fume hood, first What is the safety equipment in the room?
aid kit, and fire extinguisher
they should be rubber soled and fully enclose the foot Explain shoes PPE
they must cover the entire upper body including shoulders Explain shirts PPE
and can't have holes or mesh
lightly-used gloves should be recycled in the cardboard When should gloves be recycled or trashed?
glove recycling box and dirty gloves should go in the solid
waste container in the lab hood
chemical, tripping, and fire hazards (also the prep-staff Why should you never sit in the hallways?
needs to get through with carts and equipment)
calibration process of relating an actual physical quantity to the quantity indicated on the scale
of an instrument
calibration What increases the accuracy of a measurement?
correction factor adjustment that is necessary for physical quantity to equal quantity indicated on the
scale of an instrument
tolerance acceptable variation in precision
accuracy, repeatability, and reliability of measurements Calibration allows us to maintain ___, ___, and ___
gravimetric analysis What was used to calibrate the micropipette in Exp 4?
don't turn the pipette outside its listed volumetric range What is the most important rule when using a micropipette?
push to the first stop and release How do you draw up liquid with a micropipette?
push to the second stop and release How do you dispense of liquid with a micropipette?
