Chem 1LC Final Prep – Safety Questions With Complete
Solutions
[7] from eating, drinking, smoking, or chewing gum in lab.
[8] of any cracked or broken glassware. Correct Answers 7.
refrain
8. dispose
1. Wear safety [1], not safety glasses, and lab aprons at all times.
Wear prescription eye glasses underneath goggles.
2. Wear clothing providing [2] protection. Shorts, Capri pants,
sandals, slip on shoes, minis, and bare stomach, shoulders, or
backs are not allowed in the labs. Correct Answers 1. Goggles
2. Maximum
1. What should you do when working with a heat source?
-Always assume that glassware and metal objects are hot
-Utilize a fume hood
-do nothing
-all of these
2. What should you do when working with a volatile chemical?
-work near a heat source
-mix it with oxidizing agents
-work in the fume hood
-all of these
3. What should you do when working with a bottle containing a
chemical?
-Never assume that the cap is tightened.
-All of these
-Hold the bottle with the label in the palm of your hand.
-Grasp the bottle firmly Correct Answers 1. all of these
,2. work in the fume hood (mixing volatile chemicals with
oxidizing agents is highly hazardous lol)
3. all of these
3. Conduct myself in a mature fashion. Excessive noise or [3]
behaviors are NOT permitted.
4. Note the exact location of all [4] and learn its proper use.
Correct Answers 3. disruptive
4. safety eqipment
5. Perform reactions using (or evolving) noxious or highly
combustible chemicals in a [5].
6. Report and [6] all spills immediately. Correct Answers 5.
fume hood
6. clean up
9. Extinguish all flames or ignition sources when using [9]
and/or volatile chemicals.
10. Place all left-over chemicals in the appropriate collection
bottles in the hood. Do NOT dump chemicals into the [10].
Correct Answers 9. flammable
10. sink or trash
11. Perform only supervised and authorized experiments in lab.
An [11] must be present at all times and all procedures must be
followed.
12. Use tongs or protective gloves to handle [12] objects.
Correct Answers 11. instructor
12. hot
, 13. Add concentrated [13] slowly to water while stirring when
diluting - NEVER the reverse!
14. Use [14] procedures and precautions when inserting glass
tubing into a rubber stopper. Correct Answers 13. acid
14. correct
15. Properly label all chemical containers and [15] labels before
using chemicals.
14. Store all book bags, purses, coats, etc., in [16] areas to avoid
clutter Correct Answers 15. read
16. designated
17. I will [17] my workspace and wash hands frequently during
lab and thoroughly before leaving lab.
18. Think before acting and use [18] judgement and care in the
lab.
19. [19] report all injuries to the instructor no matter how small
the injury appears. Correct Answers 17. Clean
18. good
19. immediatly
A _____ error is caused by an experimenter's carelessness or
equipment failure. Correct Answers gross error is caused by an
experimenter's carelessness or equipment failure.
a ______ (or indeterminate) error is caused by uncontrollable
fluctuations in variables that affect experimental results. Correct
Answers a random (or indeterminate) error is caused by
uncontrollable fluctuations in variables that affect experimental
results.
Solutions
[7] from eating, drinking, smoking, or chewing gum in lab.
[8] of any cracked or broken glassware. Correct Answers 7.
refrain
8. dispose
1. Wear safety [1], not safety glasses, and lab aprons at all times.
Wear prescription eye glasses underneath goggles.
2. Wear clothing providing [2] protection. Shorts, Capri pants,
sandals, slip on shoes, minis, and bare stomach, shoulders, or
backs are not allowed in the labs. Correct Answers 1. Goggles
2. Maximum
1. What should you do when working with a heat source?
-Always assume that glassware and metal objects are hot
-Utilize a fume hood
-do nothing
-all of these
2. What should you do when working with a volatile chemical?
-work near a heat source
-mix it with oxidizing agents
-work in the fume hood
-all of these
3. What should you do when working with a bottle containing a
chemical?
-Never assume that the cap is tightened.
-All of these
-Hold the bottle with the label in the palm of your hand.
-Grasp the bottle firmly Correct Answers 1. all of these
,2. work in the fume hood (mixing volatile chemicals with
oxidizing agents is highly hazardous lol)
3. all of these
3. Conduct myself in a mature fashion. Excessive noise or [3]
behaviors are NOT permitted.
4. Note the exact location of all [4] and learn its proper use.
Correct Answers 3. disruptive
4. safety eqipment
5. Perform reactions using (or evolving) noxious or highly
combustible chemicals in a [5].
6. Report and [6] all spills immediately. Correct Answers 5.
fume hood
6. clean up
9. Extinguish all flames or ignition sources when using [9]
and/or volatile chemicals.
10. Place all left-over chemicals in the appropriate collection
bottles in the hood. Do NOT dump chemicals into the [10].
Correct Answers 9. flammable
10. sink or trash
11. Perform only supervised and authorized experiments in lab.
An [11] must be present at all times and all procedures must be
followed.
12. Use tongs or protective gloves to handle [12] objects.
Correct Answers 11. instructor
12. hot
, 13. Add concentrated [13] slowly to water while stirring when
diluting - NEVER the reverse!
14. Use [14] procedures and precautions when inserting glass
tubing into a rubber stopper. Correct Answers 13. acid
14. correct
15. Properly label all chemical containers and [15] labels before
using chemicals.
14. Store all book bags, purses, coats, etc., in [16] areas to avoid
clutter Correct Answers 15. read
16. designated
17. I will [17] my workspace and wash hands frequently during
lab and thoroughly before leaving lab.
18. Think before acting and use [18] judgement and care in the
lab.
19. [19] report all injuries to the instructor no matter how small
the injury appears. Correct Answers 17. Clean
18. good
19. immediatly
A _____ error is caused by an experimenter's carelessness or
equipment failure. Correct Answers gross error is caused by an
experimenter's carelessness or equipment failure.
a ______ (or indeterminate) error is caused by uncontrollable
fluctuations in variables that affect experimental results. Correct
Answers a random (or indeterminate) error is caused by
uncontrollable fluctuations in variables that affect experimental
results.
