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SEE ATTACHED.
Chemistry 121- Chemistry in the Modern World
Here are a few thoughts on Chapters 0 and 1 in your text.
Please note that in these notes my intention is not to comprehensively cover the readings, but instead to point you to what I feel is important and what the proctored exam will focus on. My intention is for you to use these notes as a guide to the readings.
In Chapter 0, your text provides the framework for the course and answers the question, “Why should we study chemistry?” Please have a definition of sustainability ready for the final exam. Also, take note of the following terms: ecological footprint, green chemistry and cradle-to-cradle.
Chapter 1 is an important one where many of the essential definitions that we will use throughout the course are given. Take particular note of Sections 1.6, 1.7, 1.8 and 1.9. Please note that while you do not need to memorize how to name chemicals as described in Section 1.8, I want you to familiarize yourself with this material so that you can follow the discussions and material in the text.
Using this basic framework then read through the material on the composition of air and air pollution, particularly that in Sections 1.1, 1.2, 1.3, 1.11, 1.12 and 1.13. The material in Section 1.4 will not be on the exam. For the proctored exam you will need to have an understanding of the following air pollutants: carbon monoxide, ozone, sulfur dioxide, nitrogen oxides, particulate matter, VOCs and radon. Where appropriate, know the chemical symbol, what the natural and man-made sources of the pollutant are, how it toxic to human and its relative toxicity to other air pollutants.
You have a well-written text, with lots of relevant information so enjoy.
Dr. Nancy Matton
nancy.matton@faculty.umuc.edu
2) The first Weekly Worksheet is attached here. Answer the questions using your textbook as a resource and submit your answers in the Assignments Folder. Please answer the questions using this document. For questions from the text, type in your answer. For multiple choice, please report only the correct answer (you can delete the others). Save it using your name and the week number for a title. For example, I would use Matton1. Then, submit it into the Assignments folder. This is due by next Monday. See the Syllabus and the Detailed Information on the Weekly Worksheets found in the Course Contents section for more information.
DO NOT POST YOUR ANSWERS HERE. PLEASE USE THE ASSIGNMENTS FOLDER TO TURN IN YOUR WORK.
ASSIGNED QUESTIONS: Your assigned question for week 1 is posted below. Find your question, research the answer and then post a thoughtful answer by clicking on Respond in this conference.
Three important things to remember –
1. give your post a new title
2. cut/paste the question on the top of your posting
3. this is due by Thursday, noon Japan Standard time for maximum points
4. post at least one response to a classmate
Although you only need to answer the question(s) you are assigned, you are expected to review other students’ submissions and interact with them (it should help you on the Weekly Worksheets). The conference area of the online classroom is the center for interaction among all members (i.e. students and instructors). This is a place where you can clarify and communicate concepts you are learning. Revisions, your questions to me or others, and responding to other students is all part of this interaction.
I read every comment and will comment on many, but not all, postings. My goal is for you to interact with each other, not just with me.
Please go over the Conference Participation Grading Rubric found in the Course Contents section. It describes how I will be evaluating your participation. Please note that for maximum credit, you must interact with other students by commenting or adding to their responses. You can also use the conferences as an opportunity to ask myself or your classmate’s questions that you may have in order to clarify any confusing or complicated points. This is your classroom; use it to get the information you need!
Plan to participate frequently and regularly. The only way I will know if you are actively doing this is by what you post within our classroom. So . . . make yourself known!
1. Define matter. What are pure substances and what are mixtures? What are elements and what are compounds? Tell us how these terms relate to each other and give examples. Koecher
2. Define parts per million and relate this to percent using an example other than the one in the text.
3. Describe the composition of air. Describe the earth’s atmosphere. Alvin
4. Describe scientific notation and show us how to work with it. How do you multiply and divide using scientific notation? Why should we use scientific notation?
5. Tell us about chemical symbols. How are these arranged on the periodic table? What is a chemical formula? Define and describe atoms and molecules. Relate these to the terms ‘element’ and ‘compound’. Jeremy
7. Define a chemical reaction. What is a chemical equation? How do these terms relate to each other? Give us an example other than those in the text. Alexander
8. Define the law of conservation of matter and mass and then tell us how this is used to balance chemical equations. What needs to be conserved in chemical equations? What can change? Do question b. in Your Turn 1.15 from your text as an example. Joseph
9. Define combustion and give us 2 examples using chemical equations. Danielle
10. Describe carbon monoxide as an air pollutant. What is its chemical symbol? What are the natural and man-made sources of carbon monoxide? How is it toxic to humans? Compare its relative toxicity to other air pollutants. Eric
11. Describe ozone as an air pollutant. What is its chemical symbol? What are the natural and man-made sources of ozone? How is it toxic to humans? Compare its relative toxicity to other air pollutants. Lorraine
12. Describe VOCs as air pollutants. What are these? What are the natural and man-made sources of VOCs? How are they toxic to humans? Compare their relative toxicity to other air pollutants.
13. Describe sulfur dioxide as an air pollutant. What is its chemical symbol? What are the natural and man-made sources of sulfur dioxide? How is it toxic to humans? Compare its relative toxicity to other air pollutants. Stephen
14. Describe nitrogen oxides as air pollutants. What are their chemical symbols? What are the natural and man-made sources of nitrogen oxides? How are they toxic to humans? Compare their relative toxicity to other air pollutants. Nicholas
15. Describe particulate matter as air pollutants. What are these? What are the natural and man-made sources of particulate matter? How is it toxic to humans? Compare its relative toxicity to other air pollutants. Samuel
16. Describe radon as an air pollutant. What is its chemical symbol? What are the natural and man-made sources of radon? How is it toxic to humans? Compare its relative toxicity to other air pollutants. Brittany
17. Define the following terms and give examples: organic compound, hydrocarbon, volatile.
18. Tell us about indoor air pollution.
19. Tell us about risk assessment. How does this relate to the science of chemistry?
20. Tell us about Green Chemistry. Define sustainability. Define ecological footprint. What is the Triple Bottom Line?
Discussion Questions – Week 1
See below for your Discussion Question for Week 1. Please research and post a thoughtful response to this question. The best answers will include images, graphics, animations and/or pictures to better illustrate their meaning. Please note that for many of these questions there is no right or wrong answer. What I am looking for here are answers that apply your life experiences and let us use what we are learning about chemistry to decisions we need to make in our lives. Let us know your opinion! Also note that more than one student may be assigned the same question. It is obviously OK to all answer the same question, but I would like you to try to bring something new to the discussion. For example, if asked to come up with examples to prove a concept, don’t use the same example.
Important – please start by typing in the question, or write your answers to the question so that we can understand what was asked.
You receive conference participation points for answering your discussion question. Maximum points are gained for posting your initial answer on or before Thursday so as to give your classmate’s time to read and respond. You also receive conference participation points for responding to at least one of your classmate’s posts. Please see the Detailed Instructions and Grading Rubric for Conference Participation found in the Course Contents section for a more detailed description.
Although you only need to answer the question(s) you are assigned, you are expected to read all the other students’ submissions and interact with them. The conference area of the online classroom is the center for interaction among all members (i.e. students and instructors). This is a place where you can clarify and communicate concepts you are learning. Revisions, your questions to me or others, and responding to other students is all part of this interaction.
Important things to remember –
1. give your post a new title
2. write the question on the top of your posting
3. this is due by Thursday, noon Japan Standard time for maximum points
4. post at least one response to a classmate
1. Chapter 0, Question 3 – Koesher, Alvin
2. Chapter 0, Question 8 – Jeremy, Brittany
3. Chapter 0, Question 10 – Alexander, Joseph
4. Chapter 0, Question 12 – Eric, Danielle
5. Chapter 1, Question 27 – Lorraine, Steven
6. Chapter 1, Question 32 – Nicholas
7. Chapter 1, Question 39 – Samuel
Chemistry 121 – Chemistry in the Modern World
Weekly Worksheet 1
Directions: Answer the following questions using your textbook. Create a separate Word document listing the correct answers (short answer or multiple choice) and submit it in the Assignments folder. Use as a title your name and the week number. For example, I would call this assignment Matton1. Each question is worth 1or 2 points for a total of 40 points.
1. Chapter 1, Question 8a (2points, be sure to explain)
2. Chapter 1, Question 8b (2points, be sure to explain)
3. Chapter 1, Question 8c (2points, be sure to explain)
4. Chapter 1, Question 9a (1 point)
5. Chapter 1, Question 9b (1 point)
6. Chapter 1, Question 9c (1 point)
7. Chapter 1, Question 9d (1 point)
8. Chapter 1, Question 10c (1 point)
9. Chapter 1, Question 10d (1 point)
10. Chapter 1, Question 15a (1 point)
11. Chapter 1, Question 15b (1 point)
12. Chapter 1, Question 15c (1 point)
13. Chapter 1, Question 15d (1 point)
14. Chapter 1, Question 15e (1 point)
15. Chapter 1, Question 15f (1 point)
16. Chapter 1, Question 17a (1 point)
17. Chapter 1, Question 17b (1 point)
18. Chapter 1, Question 20a (1 point)
19. Chapter 1, Question 20b (2 points)
20. Chapter 1, Question 20c (4 points)
21. Chapter 1, Question 21a (1 point)
22. Chapter 1, Question 21b (1 point)
23. Chapter 1, Question 21c (1 point)
1. Which of the following is NOT an element?
a. copper
b. carbon
c. lead
d. steel
2. This air pollutant is a complex mixture of fine particles, soot, smoke and ash. The smaller forms of these enter the lungs and are particularly dangerous.
a. CO
b. Ozone
c. SO2
d. NO2
e. Particulate matter, PM
3. This air pollutant is originates primarily from the burning of coal. It has a sharp odor and dissolves in the lungs to form an acid.
f. CO
g. Ozone
h. SO2
i. NO2
j. Particulate matter, PM
4. Refined white table sugar is usually derived from either sugar cane or sugar beets. Irrespective of the source of table sugar, after refining it always has the same composition of carbon, hydrogen and oxygen. Sugar is best classified as which one of the following?
a. Element
b. Compound
c. Mixture
d. State
5. This air pollutant is emitted from motor vehicles, has no color taste or smell and can cause death.
k. CO
l. Ozone
m. SO2
n. NO2
o. Particulate matter, PM
6. The amount of aluminum on the earth today relative to the amount 100 years ago when Al was first commercially extracted from bauxite, an aluminum containing ore, (think!)
a. is essentially the same.
b. is decreasing rapidly due to production of aluminum beverage containers.
c. is decreasing, but more slowly recently due to interest in recycling.
d. is actually increasing due to recycling efforts and more energy efficient production methods.
7. The most common molecule found in the atmosphere is,
a. oxygen.
b. carbon dioxide.
c. argon.
d. nitrogen.
e. water vapor.
8. Volatile organic compounds, VOCs,
a. contain carbon.
b. easily pass into the gaseous phase at room temperature.
c. participate in reactions that lead to the formation of ozone and NO2.
d. are removed from vehicle emissions by the action of a catalytic converter.
e. All of the above statements are true.
9. Which of the following statements is false?
a. Ozone in the air we breathe is not harmful.
b. We need ozone in the stratosphere to shield us from harmful UV rays
c. Ozone is produced in a reaction between oxygen molecules and an oxygen atom.
d. Ozone formation requires sunlight.
10. Chemistry is your favorite subject because,
a. it is easy.
b. the instructor is fantastic.
c. you love on-line learning.
d. question 11 on problem set 1 is a freebie.
