Category: Chemistry

use this layout to write an essay to determine the desnity of three “pure” elemental metal samples and the density and composition of an alloy, using the procedure established by Archimedes 2300 years ago. Al, Fe, Cu, and brass

Chem 1151 Fall 2023 Project What is the purpose of this assignment? Explore the connections among chemistry, the community, and the environment. Gain experience communicating your perspective to others in a professional manner. What are the main requirements of this assignment? ð Part 1: Create a PowerPoint presentation to inform: 1. In your words, describe what is Environmental Justice – What does it mean to you?, and 2. Identify three areas of need of Environmental Justice in the Atlanta metro area. Give descriptions in your slides (Explain what it’s about.), and prepare a reference list as background for the information in your presentation (If someone is interested in getting more information, where could they go?).

*****ALL Instructions are on attached files Labeled 🙂 PLEASE POST EACH ASSIGNMENT IN ITS OWN DOCUMENT! ***
**M1 Diseases Caused by Misfolded Proteins – DUE 9.29 – 150 Words ***
****Lab Report Nomenclature – DUE 10.1 ***
***M2 Chirality of Biomolecules – DUE 10.15 – 150 WORDS ****
*** M2 Lab 1 – Molecular Stereochemistry – DUE 10.22 – Complete the Lab Report. No Purpose, Procedure, Conclusions. (The grade is 10 points for each molecule and 10 points for the Lab Questions)****
****M2 Organic Chemistry and Art – DUE 10.29 – 150 Words ***
***M3 Biofuels – DUE 11.19 – 150 Words ***
**M3 Green Chemistry – DUE 12.3 – 150 Words ***
***Reflections on Learning – 100 WORDS ***

Write a research paper adhering to APA format, encompassing a minimum of three pages of discussion on the topic below. Be sure to use at least two reliable sources to document the information provided, including the textbook and a source from the library database (see rubric on Blackboard for more details).

In this essay assignment you will research one of the following topics:
pH regulation in the body
pH and the environment.
Select a research article that supports your topic and summarize its findings that relate to acid-base chemistry.
Your essay should include the following elements in no more than 2 pages, not counting the title and reference page:
Introduction
Discuss how pH is regulated by the human body or discuss how acids/bases impact the environment
Discuss how the human body uses buffers to control pH or where buffers can be found in the environment and how they work
Find a research article related to your chosen topic and summarize the main idea of the article and how it relates to acid base chemistry
Conclusion
Resources (should be a minimum of 3)
Your essay should follow APA formatting and be approximately 1.5-2 pages, not counting the title and reference page. A minimum of three scholarly references should be included.
Organize this essay assignment using subtitles that summarize each topic.
Be sure to use APA formatting throughout your essay with 1-inch margins, 12-point type, and double spacing throughout. Include a title page, introduction, discussion of topics with subtitles, and concluding paragraph. Remember to include in-text citations within the body of the essay referencing your resources (e.g., Murray, 2014). Also, be sure to include a reference section at the end of your assignment listing all required readings and any resources you used to complete your essay (your essay should have a minimum of three).

Discussion Instructions:
This discussion will be in a forum-style format, which will help us learn about each other. Please read carefully the discussion topic (s) before answering.
Please refer to the topic below and I would suggest that you be very specific and as much detailed as possible. Write and submit your initial post by Thursday at 11:59 pm.
– Discuss any topic of your choice that is related to Chemistry. Your discussion should include some chemistry concepts. The topic can be in an environmental field or in the areas of health, medicine, nursing, pharmacy, pollution, or a topic in the news, etc. Please do not select a topic like the Periodic Table, Significant Figures, or Scientific Method, etc. and provide examples where applicable. Your discussion should be in a paragraph format and at least 1.5 pages long (font size can be 11 and it can be double spaced).

I have included the actual assignment and the list of topics that one single topic must be chosen and summarized. It is due in 10 hours.

Lab reports must be turned in Canvas by 1:00 pm the day they are due. Late reports will not be graded. Use this format for the file name: LastName_FirstName_Rep #X.
The reports must be typed using font size 11 (font: Arial) or 12 (font: Times New Roman) in 1.5 line spacing, with 1-inch margins. The collected data and all calculations steps must be typed and be included as part of your lab report.
Your lab report must include the following sections:
Title page and abstract (5 pts) – The abstract is a brief summary of the objective, experimental results (the calculated molar mass of a gas, errors, etc) and any significant conclusions. Typically, 50 to 100 words long.
Introduction (1 page, 15 points) – Statement of the purpose of the experiment and a brief outline of the theory and background, citing pertinent equations and citing references whenever appropriate. Do not include the same content found in the handouts or the textbook; instead based it on the references you are citing. It should be at least 1 page long. Equations and/or figures included in the text will not count toward the required minimum length.
Experimental Method (5 points) – Brief outline of the experimental procedure or methodology.
Results (20 points) – Experimental results in full detail, making use of tables, plots and figures when appropriate. All results must be reported with proper units.
All calculations (all steps) must be shown with their proper units, and these will be included in the Appendices section.
Discussion (minimum half-page, 30 points) – Data analysis, data interpretation and in-depth, meaningful discussion of the results that includes a close examination of the results and possible sources of errors, relationships among variables, etc.
References (At least 1 reference, 5 points) – This reference must correspond to primary literature (peer-review articles) DIRECTLY related to the experiment performed. They must be cited in accordance with ACS guidelines (provided in a document uploaded in Blackboard).
Appendices (20 points) – Include all your calculation steps with proper units (don’t omit steps; your instructor must be able to determine how each result was calculated so that you can receive credit). Include any other supplementary material in this section.
attached is part 1 and 2 of experiment. you must do calculations and show your work

Lab reports must be turned in Canvas by 1:00 pm the day they are due. Late reports will not be graded. Use this format for the file name: LastName_FirstName_Rep #X.
The reports must be typed using font size 11 (font: Arial) or 12 (font: Times New Roman) in 1.5 line spacing, with 1-inch margins. The collected data and all calculations steps must be typed and be included as part of your lab report.
Your lab report must include the following sections:
Title page and abstract (5 pts) – The abstract is a brief summary of the objective, experimental results (the calculated molar mass of a gas, errors, etc) and any significant conclusions. Typically, 50 to 100 words long.
Introduction (1 page, 15 points) – Statement of the purpose of the experiment and a brief outline of the theory and background, citing pertinent equations and citing references whenever appropriate. Do not include the same content found in the handouts or the textbook; instead based it on the references you are citing. It should be at least 1 page long. Equations and/or figures included in the text will not count toward the required minimum length.
Experimental Method (5 points) – Brief outline of the experimental procedure or methodology.
Results (20 points) – Experimental results in full detail, making use of tables, plots and figures when appropriate. All results must be reported with proper units.
All calculations (all steps) must be shown with their proper units, and these will be included in the Appendices section.
Discussion (minimum half-page, 30 points) – Data analysis, data interpretation and in-depth, meaningful discussion of the results that includes a close examination of the results and possible sources of errors, relationships among variables, etc.
References (At least 1 reference, 5 points) – This reference must correspond to primary literature (peer-review articles) DIRECTLY related to the experiment performed. They must be cited in accordance with ACS guidelines (provided in a document uploaded in Blackboard).
Appendices (20 points) – Include all your calculation steps with proper units (don’t omit steps; your instructor must be able to determine how each result was calculated so that you can receive credit). Include any other supplementary material in this section.
attached is part 1 and 2 of experiment. you must do calculations and show your work

1. In your own words, compare the following pairs of terms and then provide an example of each.
a. Mechanism of action versus mode of action
b. Local effect versus systemic effect
c. Statistical significance versus biological significance
2. Compare chronic exposure to acute exposure. Research and discuss at least one manufacturing toxicant that causes adverse effects from both chronic exposure and acute exposure. Identify the toxicant, what it is used for in manufacturing, how exposure occurs and the observable adverse effects that it causes
3. Using the dose-response curve above answer the following questions:
a. Which substance has the highest potency? Explain your answer.
b. Define NOEL. What is the NOEL range of substance B?
c. What is the ED50 and TD50 of substance A? How did you determine these values?
d. The therapeutic index of substance B is 9. Comparing substance A to substance B, which one would be considered safer? Explain your answer.
e. At what dose is the maximum toxic effect of substance A observed? Explain your answer.
f. At what dose is threshold reached for substance B? What is the threshold of a substance?