Nitration of Methyl benzoate lab report
Nitration of Methylbenzoate lab reportInstructions lab report:
o
You must have an introduction stating the purpose of the experiment.
o
Summarize in your own words the experimental procedures carried out in the
video called EAS Nitration Experiment and Recrystallization. Summarize the
experimental procedures from the video as instructions that you would find in a lab
manual. For example:
o
1)
o
2)
o
3) etc.
o
THIS IS THE VIDEO TO SUMMARIZE:
o
Write down the chemical reaction for the experiment and the mechanism for the
reaction as well.
o
With the amounts listed in the video, find moles for reactants, find limiting reagent,
and find theoretical number of grams of product.
o
Find percent yield with the experimental number of grams mentioned in the video.
o
Sources of errors to discuss low percent yield, inaccurate melting point
compared to literature value, recrystallization process.
USE APA FORMAT EDITION 7
USE THE HANDOUT, AND THE EXPERIMENTA VIDEO AS
REFERENCES
DO NOT USE ANY CITATIONS OR QUOTATIONS
Additional videos for help:
Answer the Post lab Questions
1. From the video, mention at least few things you noticed that is a big safety concern
while working in a chemistry lab.
2. Why is it important to keep the solutions cold?
3. Why is cold water used to rinse the crude product on the Buchner funnel?
4. Why is cold methanol used to rinse the crude product on the Buchner funnel?
5. Why are boiling chips necessary for recrystallization?
6. Why was methanol used to recrystallize the crude product and not another solvent?
7. Sulfuric acid serves for three purposes in this reaction: 1) in the formation of the
nitronium ion with nitric acid; 2) as the Lewis acid catalyst for EAS and 3) as the solvent
for the reaction to dissolve methyl benzoate. Based on the protonated methyl benzoate
ions formed, explain why nitration occurs mainly at the meta position and not para or
ortho positions. Draw mechanisms to explain this concept.
8. Draw the structure of the dinitro ester, if it were to be formed, and what is the
probability of a second nitration reaction happening at the meta-nitromethyl benzoate
product?
9. What would be the product(s) if aniline were to be nitrated? Draw the chemical equation
including all the reagents necessary for nitration.
Nitration of Methylbenzoate lab report
Instructions lab report:
o
You must have an introduction stating the purpose of the experiment.
o
Summarize in your own words the experimental procedures carried out in the
video called EAS Nitration Experiment and Recrystallization. Summarize the
experimental procedures from the video as instructions that you would find in a lab
manual. For example:
o
1)
o
2)
o
3) etc.
o
THIS IS THE VIDEO TO SUMMARIZE:
o
Write down the chemical reaction for the experiment and the mechanism for the
reaction as well.
o
With the amounts listed in the video, find moles for reactants, find limiting reagent,
and find theoretical number of grams of product.
o
Find percent yield with the experimental number of grams mentioned in the video.
o
Sources of errors to discuss low percent yield, inaccurate melting point
compared to literature value, recrystallization process.
USE APA FORMAT EDITION 7
USE THE HANDOUT, AND THE EXPERIMENTA VIDEO AS
REFERENCES
DO NOT USE ANY CITATIONS OR QUOTATIONS
Additional videos for help:
Answer the Post lab Questions
1. From the video, mention at least few things you noticed that is a big safety concern
while working in a chemistry lab.
2. Why is it important to keep the solutions cold?
3. Why is cold water used to rinse the crude product on the Buchner funnel?
4. Why is cold methanol used to rinse the crude product on the Buchner funnel?
5. Why are boiling chips necessary for recrystallization?
6. Why was methanol used to recrystallize the crude product and not another solvent?
7. Sulfuric acid serves for three purposes in this reaction: 1) in the formation of the
nitronium ion with nitric acid; 2) as the Lewis acid catalyst for EAS and 3) as the solvent
for the reaction to dissolve methyl benzoate. Based on the protonated methyl benzoate
ions formed, explain why nitration occurs mainly at the meta position and not para or
ortho positions. Draw mechanisms to explain this concept.
8. Draw the structure of the dinitro ester, if it were to be formed, and what is the
probability of a second nitration reaction happening at the meta-nitromethyl benzoate
product?
9. What would be the product(s) if aniline were to be nitrated? Draw the chemical equation
including all the reagents necessary for nitration.
