Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Solving Problems: A Chemistry Handbook
Chemistry: Matter and Change
5
SOLVING PROBLEMS:
A CHEMISTRY HANDBOOK
CHAPTER
1
Safety in the Laboratory, continued
9. Report any accident, injury, incorrect procedure, or damaged
equipment to your teacher.
10. If chemicals come in contact with your eyes or skin, flush the area
immediately with large quantities of water. Immediately inform
your teacher of the nature of the spill.
11. Handle all chemicals carefully. Check the labels of all bottles
before removing the contents. Read the label three times:
• Before you pick up the container.
• When the container is in your hand.
• When you put the bottle back.
12. Do not take reagent bottles to your work area unless instructed
to do so. Use test tubes, paper, or beakers to obtain your
chemicals. Take only small amounts. It is easier to get more
than to dispose of excess.
13. Do not return unused chemicals to the stock bottle.
14. Do not insert droppers into reagent bottles. Pour a small amount
of the chemical into a beaker.
15. Never taste any chemicals. Never draw any chemicals into a
pipette with your mouth.
16. Keep combustible materials away from open flames.
17. Handle toxic and combustible gases only under the direction of
your teacher. Use the fume hood when such materials are present.
18. When heating a substance in a test tube, be careful not to point
the mouth of the test tube at another person or yourself. Never
look down the mouth of a test tube.
19. Do not heat graduated cylinders, burettes, or pipettes with a
laboratory burner.
20. Use caution and proper equipment when handling hot apparatus
or glassware. Hot glass looks the same as cool glass.
21. Dispose of broken glass, unused chemicals, and products of
reactions only as directed by your teacher.
22. Know the correct procedure for preparing acid solutions. Always
add the acid slowly to the water.
23. Keep the balance area clean. Never place chemicals directly on the
pan of a balance.
24. After completing an experiment, clean and put away your
equipment. Clean your work area. Make sure the gas and water
are turned off. Wash your hands with soap and water before
you leave the lab.
Solving Problems: A Chemistry Handbook
Chemistry: Matter and Change
5
SOLVING PROBLEMS:
A CHEMISTRY HANDBOOK
CHAPTER
1
Safety in the Laboratory, continued
9. Report any accident, injury, incorrect procedure, or damaged
equipment to your teacher.
10. If chemicals come in contact with your eyes or skin, flush the area
immediately with large quantities of water. Immediately inform
your teacher of the nature of the spill.
11. Handle all chemicals carefully. Check the labels of all bottles
before removing the contents. Read the label three times:
• Before you pick up the container.
• When the container is in your hand.
• When you put the bottle back.
12. Do not take reagent bottles to your work area unless instructed
to do so. Use test tubes, paper, or beakers to obtain your
chemicals. Take only small amounts. It is easier to get more
than to dispose of excess.
13. Do not return unused chemicals to the stock bottle.
14. Do not insert droppers into reagent bottles. Pour a small amount
of the chemical into a beaker.
15. Never taste any chemicals. Never draw any chemicals into a
pipette with your mouth.
16. Keep combustible materials away from open flames.
17. Handle toxic and combustible gases only under the direction of
your teacher. Use the fume hood when such materials are present.
18. When heating a substance in a test tube, be careful not to point
the mouth of the test tube at another person or yourself. Never
look down the mouth of a test tube.
19. Do not heat graduated cylinders, burettes, or pipettes with a
laboratory burner.
20. Use caution and proper equipment when handling hot apparatus
or glassware. Hot glass looks the same as cool glass.
21. Dispose of broken glass, unused chemicals, and products of
reactions only as directed by your teacher.
22. Know the correct procedure for preparing acid solutions. Always
add the acid slowly to the water.
23. Keep the balance area clean. Never place chemicals directly on the
pan of a balance.
24. After completing an experiment, clean and put away your
equipment. Clean your work area. Make sure the gas and water
are turned off. Wash your hands with soap and water before
you leave the lab.