Category: Chemistry

Evidence and type of reaction worksheet. Please choose an observation and a reaction type for each problem (see photos for choices of observations and reaction type)
Also show a balanced equation for each problem

what are The components of monochromator : 1- an entrance slit 2- a collimating lens 3- a dispersing device 4- a focusing lens 5- an exit slit

I need a lab report with the introduction explaning the instrument the lab and important things. This is an instrumental meth of Analysis. The data is in below. Put them on a table and in the discussion part just compare them. Also in what wavelength you can see ketones or aromatic. I also have pictures of the graphs that you can include. Just analyze each one and talk about in the discussion.

Lap report: using NMR results that say SNE that are not in the book compare to what they should be from the photo in the book, also use the post lab answers provided
NMR Analysis of 4,4’- dimethoxybenzil
1. Discuss the obtained 1H-NMR data for 4,4’-dimethoxybenzil – based on your NMR data, how pure is your compound? Discuss all peaks in the spectrum – splitting patterns, chemical shift values, integration values, and a brief justification for the assignment of each signal (functional groups, EWG vs. EDG, etc). You can combine parts of your discussion for Hs in similar environments (like for aromatic protons), especially if they overlap in your spectrum. If you see peaks for impurities (other compounds than 4,4’-dimethoxybenzil), discuss them briefly. Connect your melting point data to your NMR spectra – did your MP indicate a pure or impure substance? How does that compare to your NMR data in regard to purity? Please refer to your NMR checksheet on your postlab assignment for help with annotation and discussion of peaks. Think in the style of claim, evidence, reasoning to help with you discussion! Use the example NMR paragraph provided on Canvas as a guide!
NMR Analysis of salicylamide
2. Discuss the obtained 1H-NMR data for the other compound you chose to analyze via NMR (cinnamic acid OR salicylamide) – based on your NMR data, how pure is your compound? Discuss all peaks in the spectrum – splitting patterns, chemical shift values, integration values, and a brief justification for the assignment of each signal (functional groups, EWG vs. EDG, etc). You can combine parts of your discussion for Hs in similar environments (like for aromatic protons), especially if they overlap in your spectrum. If you see peaks for impurities (other compounds than the target compound), discuss them briefly. Connect your melting point data to your NMR spectra – did your MP indicate a pure or impure substance? How does that compare to your NMR data in regard to purity? Please refer to your NMR checksheet on your postlab assignment for help with annotation and discussion of peaks. Think in the style of claim, evidence, reasoning to help with you discussion! Use the example NMR paragraph provided on Canvas as a guide!
Conclusions
3. Start this paragraph with “In conclusion, the acid/base separation of cinnamic acid, salicylamide, and fluorenone was successful/unsuccessful…..” “Success” should be related to whether you were able to isolate each compound as evidenced by the NMR data. Now that you have the full story and spectroscopic evidence, tie all pieces of data together (NMR and melting point data, yield, appearance) in a few sentences. Thinking back to your Postlab answers and your NMR data, what is the take-home message of this experiment? Were there any major sources of error? What are TWO thoughtful and scientific improvements, additions, or adaptations for this experiment? Remember, specifically saying “human error” without explanation should NOT be proposed as a source of error. Areas of improvement should not include things like “do the experiment better next time” or “don’t spill your compound”. Think about the experiment critically, potential flaws of acid/base extraction, and the science behind acid/base extraction.

Hello, please do my lab report for the Hydrocortisone Specifications lab. I have attached the manual. I have also attached the lab report I started writing for it but I want you to redo it to a higher standard. And answer the questions at the end. Thank you

Hello, please do my lab report for the Hydrocortisone Specifications lab. I have attached the manual. I have also attached the lab report I started writing for it but I want you to redo it to a higher standard. And answer the questions at the end. Thank you

For this assignment, you will write a letter of intent for a grant. A letter of intent is sent out to grant institutions to notify them of your interest in doing a particular kind of project and to determine their interest in funding your work. In science, education, and even in some businesses, letters of intent and grants are a means of professional survival and growth.
This grant is being offered through the American Chemical Society (ACS), and its purpose is to educate others on a compound. For the letter of intent, in at least 750-words you must:
1. Pick a compound in the field of nutrition.
2. Introduce this compound and let the committee know about the compound and why it is important to learn about it.
3. Write a logical, persuasive argument that will gain the reader’s interest and demonstrate how this will fill a void in an area that is lacking information.
Be sure you include the following: • Name of the compound you are interested in. Some common examples you may already know are NaCl (table salt), or CaCO3 (the active ingredient in TUMS). These examples are not eligible for use in this paper.
• Identify the field of study you are focusing on with this compound.
• List the elements that are in the compound.
• Provide some characteristics of the compound, such as boiling point, state of matter, density.
• Describe why this compound is important to learn about.
• Explain why this field of study is being chosen as the focus.
• Outline what you hope the audience will gain from learning about this compound.
The letter of inquiry should be persuasive yet brief. Avoid any jargon that may bog down the reader of the letter. The content should be as follows:
Please use the following subheadings in the paper.
o Opening Introduction: Introduce yourself and your idea of creating an educational narrative presentation on the compound you are interested in and the field of study that you will focus on with this compound.
o Statement of need: Discuss why the compound is important to learn about and why that field of study is being chosen as the focus.
o Project Activity: Sell yourself and your compound. Explain why your compound and approach is the way to go and should be looked at.
o Outcomes: Discuss what you hope the audience will gain from learning about this compound.
o Closing/Conclusion: Summarize your content and ask to submit a full proposal.
Note: For the purposes of this assignment you are not creating a complete letter of Intent but some of the basics of a letter of intent for a grant.
• Essay should be formatted as per APA-formatting guidelines, double spacing the assignment, and using a 10 or 12 font size.
• Should include a cover page, an introduction, and a conclusion.
• The body of the essay should address the different topics and questions described above.
• All statements of fact should be included in an APA reference list at the end of the essay.
o Resources from 1 – 2 reliable and/or academic sources.
• The essay should be a minimum of 750 words in length not counting the cover page and reference list.

Atoms were thought to be indivisible (not able to be broken down). We now know that they are made of smaller particles. Should we still think of them as the building blocks of matter?
For this discussion, this is a critical thinking exercise. There is no correct answer, just allow yourself to delve into this question and explore your thoughts on it. Write at least 4 sentences to support your thoughts.

Atoms were thought to be indivisible (not able to be broken down). We now know that they are made of smaller particles. Should we still think of them as the building blocks of matter?
For this discussion, this is a critical thinking exercise. There is no correct answer, just allow yourself to delve into this question and explore your thoughts on it. Write at least 4 sentences to support your thoughts.

https://phet.colorado.edu/en/simulations/balancing-chemical-equations
Please follow the link above to see the simulation. This is coursework requires some chemistry calculations. Please use the attached PDF review Chapter 4: Chemical Reactions and Equations of this textbook to understand the concept.
If you have any questions, please let me know.