Organic Chemistry
LAB 1 POSTLAB REPORT (65 pts)
1. State the objective(s) of the lab. (5 pts)
• To analyze the effects of specific liquids on a variety of materials
• To observe potential hazards
• To investigate the effects of strong bases, strong acids, acetone and bleach on a variety of materials which include sugar, cotton, nylon, hair, polystyrene, egg white, egg yolk, and aluminum foil.
2. Give a summary of your observations for each of the experiments. (24 pts)
Sugar + H2SO4 Black clumped substance formed
C12H22O11(s) + H2SO4 12C(s) + 11H2O(g)
Cotton + HCl No visible change
Cotton + H2SO4 Slight color change (light reddish brown)
Cotton + HNO3 No visible change
Nylon + HCl Completely dissolved
Nylon + H2SO4 Completely dissolved
Nylon + HNO3 Nylon stuck to the bottom of flask
Hair + HNO3 Turned hair slightly yellow
Hair + bleach Partially dissolved
Egg white + HNO3 Solidified the egg
Egg white + NaOH Solidified the egg
Egg white + bleach Completely dissolved
Polystyrene + acetone Completely dissolved
Aluminum foil + NaOH Clumped together to form a hard substance
Egg yolk + HNO3 Solidified the egg
Egg yolk + NaOH Solidified the egg
Egg yolk + bleach Completely dissolved
3. What is the correct safety attire for this lab course? (6 pts)
Students must wear lab goggles, lab coat, and correct shoes which include no open toes, open backs, or open sides.
4. What is the correct procedure to check out and check in equipment? (6 pts)
Students are provided a sheet which indicates the appropriate number of items located in the drawer. Students must count the items and verify they are present in the drawer by filling in the appropriate number by the box and signing the
1. State the objective(s) of the lab. (5 pts)
• To analyze the effects of specific liquids on a variety of materials
• To observe potential hazards
• To investigate the effects of strong bases, strong acids, acetone and bleach on a variety of materials which include sugar, cotton, nylon, hair, polystyrene, egg white, egg yolk, and aluminum foil.
2. Give a summary of your observations for each of the experiments. (24 pts)
Sugar + H2SO4 Black clumped substance formed
C12H22O11(s) + H2SO4 12C(s) + 11H2O(g)
Cotton + HCl No visible change
Cotton + H2SO4 Slight color change (light reddish brown)
Cotton + HNO3 No visible change
Nylon + HCl Completely dissolved
Nylon + H2SO4 Completely dissolved
Nylon + HNO3 Nylon stuck to the bottom of flask
Hair + HNO3 Turned hair slightly yellow
Hair + bleach Partially dissolved
Egg white + HNO3 Solidified the egg
Egg white + NaOH Solidified the egg
Egg white + bleach Completely dissolved
Polystyrene + acetone Completely dissolved
Aluminum foil + NaOH Clumped together to form a hard substance
Egg yolk + HNO3 Solidified the egg
Egg yolk + NaOH Solidified the egg
Egg yolk + bleach Completely dissolved
3. What is the correct safety attire for this lab course? (6 pts)
Students must wear lab goggles, lab coat, and correct shoes which include no open toes, open backs, or open sides.
4. What is the correct procedure to check out and check in equipment? (6 pts)
Students are provided a sheet which indicates the appropriate number of items located in the drawer. Students must count the items and verify they are present in the drawer by filling in the appropriate number by the box and signing the