Chem 51LB Experiment 5 Report Scaffold

Bromination of trans-cinnamic acid

General Questions:
What were we trying to accomplish with this experiment? How did we plan to
accomplish this? The purpose of an experiment is not simply to introduce a student to a technique or reaction!

General Questions:
Assume you are writing for another student who has taken organic chemistry before but might have forgotten some of the details of reactions and lab techniques. What information about the reaction and techniques being used in this experiment would you need to remind them of to make sure they understand what you did, why you did it, and what the results mean? Attach any mechanisms to the appendix of your report scaffold.

General Questions:
What important data were obtained in this experiment? The data provided in this section should relate to the purpose(s) of the experiment, but you do not need to point out the connections here. Do not explain your results yet. Just provide them in an organized format. Don’t forget to include any assigned unknown number! You should include a table to organize your data.

General Questions:
How do the data obtained relate to the purpose(s) of the experiment? How do you know the identity of the product and/or unknown? Do the results make sense? What
conclusions can you draw from the data? What conclusions can you NOT draw from the data? (Note that although you are provided with distinct, individual questions here, sometimes the answers to these questions might overlap with each other. That’s ok! In a lab report you would need to decide how to tie these answers together.)

Chem 51LB Experiment 5 Report Scaffold

Bromination of trans-cinnamic acid

Experiment Specific Questions:
1. What product(s) did you obtain, and how did you decide that was the product(s)?
Use your data to build an argument for your conclusion! If your data is inconclusive,
why? Do the data allow you to eliminate possible mechanisms? If so, which and why?
2. Do the product(s) you identified allow you to eliminate possible mechanisms? If so,
which and why?
3. Does the recovery of your product make sense? If the recovery is high (>100%), why could it be? If the recovery is lower than 100%, why might this be? Was there a large amount of product lost in the recrystallization process? Was the lost mass attributed to separation of an impurity? If so, how do you know this? Avoid discussing mechanical errors unless they were significant. Remember that matter is neither created nor destroyed. You might not be able to say with certainty but you can hypothesize. How would you test your hypothesis with an analytical technique? What results from your test would support your hypothesis? Why is it important to resolve this error?
Suggest a fix to the error and provide potential evidence to support the claim that
the error occurred and affected your results.
4. Do your melting point data make sense? Was the melting point of the product you
obtained higher or lower than expected? If so, what might explain this? As mentioned
above, you might not be able to say for sure, but you can certainly hypothesize and
provide ways to test your hypotheses.
Suggest a fix to the error and provide potential evidence to support the claim that
the error occurred and affected your results.

DETAILED ASSIGNMENT

20210213042131instructions