PreLab Quiz: Lab Safety

If a large amount of a caustic chemical spills on your clothes, or if your clothing catches on fire, you need to use the:

a. safety shower

b. eyewash station

c. fire extinguisher

d. fire blanket

a. safety shower

Determine when you should remove your goggles in the lab room.

Select one:

a. Whenever you need to lean in close to get a volume reading

b. Whenever your goggles become foggy or uncomfortable

c. When you have finished cleaning up your chemicals and glassware

d. When everyone in the room is done handling any chemicals or glassware

d. When everyone in the room is done handling any chemicals or glassware

To handle a hot glass beaker, it is best to use

(tongs oven mitts a paper towel)

If you burn yourself, immediately rinse the area with

(baking soda, water, alcohol)

Acids and bases, such as NaOH and HCl, are strong and can cause burns. In case of contact with your skin, rinse immediately with

(baking soda, water, alcohol)

tongs

water

water

What should be done if a chemical gets in one of your eyes? Select any applicable answer.

Select one or more:

a. Use the eyewash station, being careful not to rub your eye.

b. Nothing, unless the chemical causes discomfort.

c. Use a flexible hose on a faucet to rinse your eye, being careful not to rub your eye.

a. Use the eyewash station, being careful not to rub your eye.

c. Use a flexible hose on a faucet to rinse your eye, being careful not to rub your eye.

What precautions should you take with long hair?

Select one:

a. Use one hand to hold your hair out of the way of experiments, if necessary.

b. No long hair is allowed in the lab.

c. Long hair must be secured with a rubber band, barette, or headband.

d. No precautions are necessary.

c. Long hair must be secured with a rubber band, barette, or headband.

How do you dispose of broken glassware, such as a broken test tube or beaker that contains a chemical residue?

Select one:

a. Remove chemical residue, then place in the garbage can

b. Wrap the broken pieces in paper towels and place them in the garbage

c. Remove chemical residue, then place it in the red can labeled "glass only"

d. Place in the red can labeled "glass only"

d. Place in the red can labeled "glass only"

All chemical waste in the lab is disposed of in an appropriate waste jar located in the

Before you pour chemical waste into a waste jar, you must first read the

How will you dispose of non-toxic waste?

fume hood

label

trash

What should you do with chemical waste when the waste jar in the hood is filled to the bottom of the neck?

Select one:

a. Ask the stock room personnel to bring another waste jar.

b. Label the beaker as waste and leave it next to the waste jar in the hood.

c. Keep pouring waste into the waste jar until it is completely full.

a. Ask the stock room personnel to bring another waste jar.

The lid on a waste jar should never be tight, and a waste jar should not be filled past the bottom of the neck. Why not?

Select one:

a. To allow for easy transport of the waste from the fume hood to the disposal facility

b. The lid of a waste jar is not designed to be in contact with chemical substances and may corrode.

c. To ensure that the waste can be easily accessed, and that there is ample room for the waste and its vapors

c. To ensure that the waste can be easily accessed, and that there is ample room for the waste and its vapors

Are shorts allowed in the lab?

Select one:

a. No, only long pants are allowed.

b. Yes, only if they are knee-length or longer.

c. Yes, and it doesn't matter how long they are.

a. No, only long pants are allowed.

What do you do if a strong acid is spilled on a counter or in the fume hood?

Select one:

a. A) Avoid the area

b. B) Use paper towels to clean it up, and dispose of towels in the garbage

c. C) Notify the TA

d. D) Use sodium bicarbonate to neutralize the acid and notify the TA

e. E) Either C or D

e. E) Either C or D

What precautions should you take if you boil or heat a solution?

Select one:

a. You should never leave the solution unattended.

b. As long as you watch the solution closely, you can work on other parts of the experiment.

c. When boiling a solution, you should use boiling chips to prevent splattering.

d. You should always wear eye protection and secure long hair.

e. You should make sure the beaker or flask rests securely on the ring stand or hot plate.

f. All of the above

f. All of the above

To activate the safety shower, pull down on the ______________________.

Select one:

a. handle

b. rope

c. shower head

d. faucet

a. handle

To activate the eyewash, push the ________________ towards the wall.

Select one:

a. faucet

b. knob

c. button

d. lever

d. lever