Order ID:89JHGSJE83839 | Style:APA/MLA/Harvard/Chicago | Pages:5-10 |
Instructions:
Chemistry Supercritical Extraction Lab Essay Assignment
There are two parts of assignments:
Assignment 1)
Post-Lab Report assignment (Experiment 4). It will not take more than one hour to complete it
You already do the pre-lab assignment (Experiment 4) for me last week. So, it’ll be easy for you to do the post-lab report. Also, I’ll upload a picture of the data and some information to complete this post-lab report assignment. I’ll upload to you the pre-lab report (Experiment 4) to check it and make it easy for you.
Please read the instructions carefully for this assignment because it’s important and make sure you do exactly what it says in the instructions and mention everything is needed on it.
instructions
Post- Lab Report (Experiment 4)
What are terpenoids? What are the different types of terpenoids? What is D-limonene and to
which type of terpenoids does it belong? 1 pt
Describe chirality, polarimetry, optical rotation, enantiometric excess (ee). 1 pt
Describe and discuss liquid CO2 extraction technique. 1 pt
Discuss the different benefits of using liquid CO2 extraction as compared to the traditional steam
distillation technique in isolating D-limonene from orange peels. 3 pts
Experimental Section
Is the summary of the experimental procedure in a form of a flow chart? 1 pt
Are the main procedural steps for isolation of D-limonene clearly shown in a form of flow chart?
2 pts
Is the section written as the student have done in the lab video? 1 pt
Table of Chemicals
Are all chemicals used listed? 2 pts
Are all physical properties listed? 1 pt
Are all chemical properties listed? 1 pt
Results
Is the table clearly showing the mass, odor, percentage yield, optical rotation, specific rotation,
ee, refractive index of D-limonene? 4 pts
Show clearly how to calculate the percentage yield, specific rotation, ee, refractive index of D-
limonene. 4 pts
Discussion
Discuss the benefits you have observed in the extraction of D-limonene in this experiment. 1.5
pts
Compare the method you did in this experiment with the traditional steam distillation in terms of
safety, minimizing waste and energy consumption .1.5 pts
Discuss the optical rotation and specific rotation. Did you get what you expected? 2 pts
Discuss the ee of the isolated D-limonene. Provide an acceptable explanation if you got an ee
that exceeds 100% or an ee that is lower than 80%. 1.5 pts
Discuss the refractive index of D-limonene and compare it with the literature value. Provide an
acceptable reason if this value is different from the literature value. 1.5 pts
Conclusion
Are the theoretical background and the results you got connected? If yes/no why and how? 1 pt
What does the experimental data reveal? 1 pt
Discuss how the techniques performed in this experiment can be applied to other situations? 1 pt
Did the experiment accomplish what it set out to do? 1 pt
References
3 Reference – 1 pt
Proper citations format – 1 pt
Overall Format
Are all sections labeled? 1 pt
Are proper font and spacing as shown in the lab manual used? 1 pt
Is proper scientific language used? Is overall format attractive? 1 pt
Assignment 2)
Pre-Lab Report (Experiment 5)
Very simple assignment, please read the instructions carefully to know what you should do.
This assignment is very easy, and it will not take more than half-hour to complete it after you watch the video to know what you need to do. So please try your best to do it.
I posted a link for the video; you have to watch the video carefully to get all information needed in the pre-lab assignment. Please don’t forget to collect the data when you watch the video if it’s required.
Also, please make sure you follow the pre-lab rubric file I’ve uploaded here. In addition, please make sure you write your own words when you fill the information in the pre-lab assignment.
If there is anything you need for this assignment or you don’t understand something in the instructions, please feel free to ask me.
This is the link for the video
I post the link for the video, and I think now you can watch the video it doesn’t open with you please let me know. Please don’t forget to follow the pre-lab rubric.
I’ll upload the pre-lab rubric to let you see it and make sure that includes everything that is needed on it.
RUBRIC |
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Excellent Quality 95-100%
|
Introduction
45-41 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned. |
Literature Support 91-84 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned. |
Methodology 58-53 points Content is well-organized with headings for each slide and bulleted lists to group related material as needed. Use of font, color, graphics, effects, etc. to enhance readability and presentation content is excellent. Length requirements of 10 slides/pages or less is met. |
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Average Score 50-85% |
40-38 points More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided. |
83-76 points Review of relevant theoretical literature is evident, but there is little integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are included. Summary of information presented is included. Conclusion may not contain a biblical integration. |
52-49 points Content is somewhat organized, but no structure is apparent. The use of font, color, graphics, effects, etc. is occasionally detracting to the presentation content. Length requirements may not be met. |
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Poor Quality 0-45% |
37-1 points The background and/or significance are missing. No search history information is provided. |
75-1 points Review of relevant theoretical literature is evident, but there is no integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are not included in the summary of information presented. Conclusion does not contain a biblical integration. |
48-1 points There is no clear or logical organizational structure. No logical sequence is apparent. The use of font, color, graphics, effects etc. is often detracting to the presentation content. Length requirements may not be met |
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Chemistry Supercritical Extraction Lab Essay Assignment |
Chemistry Supercritical Extraction Lab Essay Assignment