oxygen concentration on earth discussion
Order ID 53563633773 Type Essay Writer Level Masters Style APA Sources/References 4 Perfect Number of Pages to Order 5-10 Pages Description/Paper Instructions
oxygen concentration on earth discussion
Chapter 2
Working more than just the assigned problems will be helpful for learning the material.
The following questions are assigned to be answered for this course.
30 points
Both correctness and completeness will be used in the evaluation of your submission.
- We live in an atmosphere of 21% oxygen. A match burns in less than a minute, a fireplace consumes a small pine log in about 20 minutes, and we exhale about 15 times a minute. Life on Earth would be very different if the oxygen concentration were half as high. (ie 10% instead of ~21%)
List at Two differences if the oxygen concentration on earth were at this reduced level what it currently is. (Assume that it is the nitrogen concentration increased appropriately)
1).
2)
- Calculate the volume of air in liters that you might inhale (and exhale) in an 8-hour working day. Assume that each breath has a volume of about 0.5 L, and that you are breathing 15 times a minute. (if possible, show your calculation)
- From this calculation (above), you can see that breathing exposes you to large volumes of air. Identify 3 sources of particulate matter found in air
1.
2.
3.
- A carbon Monoxide detector will go off if the concentration of CO is 400ppm or greater for a period of 4-15 minutes.
- Express 400 ppm as a percent
- Why is carbon monoxide (CO) considered to be an air pollutant?
- Is CO considered to be a primary or a secondary pollutant?
- What is the major source of CO pollution in the air?
- What is the troposphere, where is it found and why is it important?
- Give the names of these gases:
CH4,
SO2
O3
- Hydrocarbons are important fuels that we burn for many different reasons.
- What is a hydrocarbon?
- Rank these hydrocarbons (from least to greatest) by the number of carbons they contain: propane, methane, butane, octane, and ethane.
- Write balanced chemical equations to represent these reactions.
- Nitrogen reacts with oxygen to form nitrogen monoxide.
Hint: Nitrogen and oxygen are both diatomic molecules. [O2 and N2]
- Ozone decomposes into oxygen and atomic oxygen (O).
Hint: what is the chemical formula for ozone (check chapter 1)
- A headline from the Anchorage Daily News in Alaska (January 17, 2008): “Family in car overcome by carbon monoxide. Fire department saves five after slide into snow bank?
- If your car is in the snow bank and the engine is running CO may accumulate inside your car. Normally, however, CO does not accumulate in the car, EXPLAIN.
- Why didn’t the occupants of the car detect the CO?
- If the pollutant had been SO2 would this have been detected?
- For much of the continental United States, the ozone season runs from May 1 to October 1. Why are ozone levels typically not reported in the winter months?
From these problems, and others found within Chapter 2, you should be able to:
Identify the elements of green chemistry
Identify the major gases in clean air and their relative percentages
Identify the 4 major gaseous pollutants in the troposphere and an identifying characteristic of each
Discuss the differences between a primary and a secondary pollutant
Recognize and understand the difference in outdoor and indoor pollutants.
Convert between these 3 concentration units: %, ppm and ppb
Understand the concept of an air inversion
Name simple bi-atomic compounds
Recognize and rank hydrocarbons based on their # of Carbon atoms
Balance a simple chemical reaction (given the reaction, add the necessary coefficients)
Explain why a pollutant is classified a pollutant (the criteria used)
Recognize the air quality index and the color scheme used to warn the publix
1
57
RUBRIC
QUALITY OF RESPONSE NO RESPONSE POOR / UNSATISFACTORY SATISFACTORY GOOD EXCELLENT Content (worth a maximum of 50% of the total points) Zero points: Student failed to submit the final paper. 20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. 30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking. 40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete. 50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing. Use of Sources (worth a maximum of 20% of the total points). Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper. 5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper. 10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources. 15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6th Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources. 20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment. Grammar (worth maximum of 20% of total points) Zero points: Student failed to submit the final paper. 5 points out of 20: The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors 10 points out 20: The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors 15 points out of 20: The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage. 20 points: The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free. Structure of the Paper (worth 10% of total points) Zero points: Student failed to submit the final paper. 3 points out of 10: Student needs to develop better formatting skills. The paper omits significant structural elements required for and APA 6th edition paper. Formatting of the paper has major flaws. The paper does not conform to APA 6th edition requirements whatsoever. 5 points out of 10: Appearance of final paper demonstrates the student’s limited ability to format the paper. There are significant errors in formatting and/or the total omission of major components of an APA 6th edition paper. They can include the omission of the cover page, abstract, and page numbers. Additionally the page has major formatting issues with spacing or paragraph formation. Font size might not conform to size requirements. The student also significantly writes too large or too short of and paper 7 points out of 10: Research paper presents an above-average use of formatting skills. The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment. 10 points: Student provides a high-caliber, formatted paper. This includes an APA 6th edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper. GET THIS PROJECT NOW BY CLICKING ON THIS LINK TO PLACE THE ORDER
CLICK ON THE LINK HERE: https://www.perfectacademic.com/orders/ordernow
Also, you can place the order at www.collegepaper.us/orders/ordernow / www.phdwriters.us/orders/ordernow
Do You Have Any Other Essay/Assignment/Class Project/Homework Related to this? Click Here Now [CLICK ME]and Have It Done by Our PhD Qualified Writers!!