Safety in Science Answers

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1
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When should a lab coat, safety goggles, and gloves be worn in the laboratory?

A
always, no exceptions
B
always, unless the teacher instructs otherwise
C
only when the teacher says to wear them
D
never in chemistry labs
2
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The MSDS for chloroform indicates that it is a clear liquid that has a pleasant smell and substantial vapor pressure. People should avoid inhaling its vapors, and it is sensitive to light. Malik needs 10 mls of chloroform for an experiment. According to this information, how should he safely pour the chloroform?

A
He should locate the chloroform stored in a transparent container in chemical storage and pour directly into his beaker from that location.
B
He should locate the chloroform stored in a transparent container in chemical storage and should take it to the fume hood to pour.
C
He should locate the chloroform stored in a dark container in chemical storage and should take it to the fume hood to pour.
D
He should locate the chloroform stored in a dark container in chemical storage and pour directly into his beaker from that location.
4

Denise heats a beaker of dilute acid on a hot plate in a fume hood. What should Denise wear to best protect herself when she transports the beaker to a balance outside the hood?

A
heat-proof gloves, a lab coat, and close-toed shoes
B
goggles, a lab coat, and close-toed shoes
C
goggles, a lab coat, and heat-proof gloves
D
goggles, a lab coat, heat-proof gloves, and close-toed shoes
5

What are close-toed shoes least likely to provide protection against?

A
hydrogen gas produced during a reaction
B
spilled water from a hot-water bath
C
broken glass from a dropped test tube
D
acid leaking from a cracked beaker
6

When students work in a chemistry lab, the location of which item would be the most important for each student to know?

A
broom and dust pan, in case the student needs to sweep up broken glass
B
baking soda, in case the student needs to neutralize an acid spill
C
ice maker, in case the student needs to cool off hot glassware
D
safety shower, in case a chemical is spilled on the student’s body
8

Where in the laboratory is long, unrestrained hair most likely to be a safety concern?

A
near an open flame
B
close to a fume hood
C
next to a concentrated sodium chloride solution
D
by a cabinet that contains flammable liquids
9

Emily spills concentrated sodium hydroxide solution on her lab bench. What she should do first?

A
Notify her teacher.
B
Clean up the spill herself.
C
Clean up the spill with her classmates.
D
Read the MSDS for sodium hydroxide.

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