CHEM 2212L Wittig Reaction Lab Report Worksheet Graded
Student
Kendall Kessler
Total Points
pts
Question 1
Chemical Reagents pts
+ 14 pts Benzyltriphenylphosphonium chloride
9-Anthraldehyde
Methylene chloride
Water
1-Propanol
Sodium hydroxide
Calcium chloride
− 2 pts 1 missing/Incorrect
Question 2
Boiling Points pts
+ 4 pts 1-Propanol 97-98oC
Ethyl Acetate 77oC
+ 0 pts Incorrect
Question 3
Melting Points pts
+ 6 pts 9-Anthraldehyde 103-105oC
Benzyltriphenylphosphonium chloride ≥300oC
Calcium Chloride 772oC
+ 0 pts Incorrect
Question 4
Experimental Techniques pts
+ 10 pts Liquid/Liquid Extraction
Simple Distillation
Recrystallization
Suction Filtration
IR spectroscopy
− 2 pts 1 missing/Incorrect
,Question 5
Safety Pictograms Resolved pts
+ 12 pts Acute Toxicity
Corrosive
Chronic Toxicity
Minor/Other Health Hazard
Environmental Toxicity
Flammable
+ 6 pts partially correct
− 2 pts 1 missing/incorrect
− 4 pts 2 missing/incorrect
+ 0 pts Incorrect
Regrade Request Submitted on: Apr 27
Pubchem said no igrediets were flammable but it could be wrong!
The question required using safety pictogram data from Sigma-Aldrich. Based on that
source, the flammable pictogram is included for the chemicals used. Since it was not
selected, the −2 deduction for one missing pictogram was applied
Reviewed on: Apr 30
Question 6
Glassware Resolved pts
+ 24 pts Graduated Cylinder
Round Bottom Flask
Beaker
Erlenmeyer Flask
Separatory Funnel
Distillation Head
Thermometer
Condenser
**Glass funnel would also be acceptable**
− 9 pts 3 missing/Incorrect
− 6 pts 2 missing/incorrect
− 12 pts 4 missing/incorrect
Regrade Request Submitted on: Apr 27
We didd not use a lot of these that are listed in our experiment. Hubbard used some of
them but we did not actively use them in the lab. Thank you Ali!
The question asks for all glassware used in the experiment, not just the items you
personally handled. Some required items (like beaker and graduated cylinder) were not
selected, and a few items chosen were not part of the standard setup.
So the deduction reflects missing required glassware and inclusion of incorrect items,
which results in 18/24.
Reviewed on: Apr 30
,Question 7
Lab Procedure Questions pts
7.1 Alkene Product pts
+ 4 pts
Correct
+ 0 pts Incorrect
7.2 Primary Solvent pts
+ 2 pts Ethyl Acetate
+ 0 pts Incorrect
7.3 Ylide Reactant pts
+ 4 pts
Correct
+ 0 pts Incorrect
− 2 pts missing charge
7.4 Recrystallization Solvent pts
+ 2 pts 1-Propanol
+ 0 pts Incorrect
7.5 Extraction Bottom Layer pts
+ 2 pts Aqueous
+ 0 pts Incorrect
, 7.6 Drying Agent pts
+ 3 pts Students used anhydrous calcium chloride to absorb the water remaining in the organic layer. A
small amount of the granules was added to the flask and swirled until all of the water was
aggregated in the drying reagent. The dry organic solvent was then decanted into a dry round
bottom flask.
+ 0 pts Incorrect
Student
Kendall Kessler
Total Points
pts
Question 1
Chemical Reagents pts
+ 14 pts Benzyltriphenylphosphonium chloride
9-Anthraldehyde
Methylene chloride
Water
1-Propanol
Sodium hydroxide
Calcium chloride
− 2 pts 1 missing/Incorrect
Question 2
Boiling Points pts
+ 4 pts 1-Propanol 97-98oC
Ethyl Acetate 77oC
+ 0 pts Incorrect
Question 3
Melting Points pts
+ 6 pts 9-Anthraldehyde 103-105oC
Benzyltriphenylphosphonium chloride ≥300oC
Calcium Chloride 772oC
+ 0 pts Incorrect
Question 4
Experimental Techniques pts
+ 10 pts Liquid/Liquid Extraction
Simple Distillation
Recrystallization
Suction Filtration
IR spectroscopy
− 2 pts 1 missing/Incorrect
,Question 5
Safety Pictograms Resolved pts
+ 12 pts Acute Toxicity
Corrosive
Chronic Toxicity
Minor/Other Health Hazard
Environmental Toxicity
Flammable
+ 6 pts partially correct
− 2 pts 1 missing/incorrect
− 4 pts 2 missing/incorrect
+ 0 pts Incorrect
Regrade Request Submitted on: Apr 27
Pubchem said no igrediets were flammable but it could be wrong!
The question required using safety pictogram data from Sigma-Aldrich. Based on that
source, the flammable pictogram is included for the chemicals used. Since it was not
selected, the −2 deduction for one missing pictogram was applied
Reviewed on: Apr 30
Question 6
Glassware Resolved pts
+ 24 pts Graduated Cylinder
Round Bottom Flask
Beaker
Erlenmeyer Flask
Separatory Funnel
Distillation Head
Thermometer
Condenser
**Glass funnel would also be acceptable**
− 9 pts 3 missing/Incorrect
− 6 pts 2 missing/incorrect
− 12 pts 4 missing/incorrect
Regrade Request Submitted on: Apr 27
We didd not use a lot of these that are listed in our experiment. Hubbard used some of
them but we did not actively use them in the lab. Thank you Ali!
The question asks for all glassware used in the experiment, not just the items you
personally handled. Some required items (like beaker and graduated cylinder) were not
selected, and a few items chosen were not part of the standard setup.
So the deduction reflects missing required glassware and inclusion of incorrect items,
which results in 18/24.
Reviewed on: Apr 30
,Question 7
Lab Procedure Questions pts
7.1 Alkene Product pts
+ 4 pts
Correct
+ 0 pts Incorrect
7.2 Primary Solvent pts
+ 2 pts Ethyl Acetate
+ 0 pts Incorrect
7.3 Ylide Reactant pts
+ 4 pts
Correct
+ 0 pts Incorrect
− 2 pts missing charge
7.4 Recrystallization Solvent pts
+ 2 pts 1-Propanol
+ 0 pts Incorrect
7.5 Extraction Bottom Layer pts
+ 2 pts Aqueous
+ 0 pts Incorrect
, 7.6 Drying Agent pts
+ 3 pts Students used anhydrous calcium chloride to absorb the water remaining in the organic layer. A
small amount of the granules was added to the flask and swirled until all of the water was
aggregated in the drying reagent. The dry organic solvent was then decanted into a dry round
bottom flask.
+ 0 pts Incorrect
