Chapter 5 Problems
20. Write expressions for the following catalytic chemical reactions that occur
in the catalytic converter.
a) The removal of CO from the exhaust stream
2CO + O2 2CO2
b) The removal of unburned octane from the exhaust stream
13. Define the following:
A. mist: Aerosols and particulates that are liquid are generally called mist.
B. fog: Collection of liquid water droplets or ice crystals suspended in the air at or near the earth s
C. soot: An impure form of elemental ca
Take-home Exam 1
1. Global Warming. Global warming is thought to result from an imbalance
between the solar radiation received by the earth and that lost back into space.
Describe the difference between the solar radiation and the radiation
Ch. 14: 3, 4, 27.
3) What is the steady-state accumulation of mercury in a person who eats 500 g of tuna daily that
contains .2 ppm of mercury?
(500g Tuna)*(.2 ppm mercury)*(1 mg CH3Hg/kg Tuna)/ppm)*(1 kg/1000g)= .1
The atmospheric window refers to the portion of the electromagnetic spectrum from
approximately 7.5 to13m through which infrared radiation from the earth can escape
and is not absorbed by the atmosphere.
The stratosphere has a lower mass than the troposphere because eventhough the
stratosphere is larger in volume, the pressure acting on it from above is far less, therefore
the density is much lower.
Unit 1 Worksheet
Answer the following questions
1. Is it possible that you may have been exposed to hazardous chemicals? If so,
how do you think you were exposed?
2. Should the government do more to prevent or reduced exposure to
Chapter 9 Assignment
Questions for Poisoned Waters
1. What types of water pollution are observed in the video?
The largest contributors to the water pollution in the video are chemical and
biological hazards introduced from the agriculture indus
27. Work is defined in the book as the ability to do work or bring about change.
Some different forms of energy are:
1) Potential Energy: This can mean different kinds of potential energy such as
Chem3650 - Stephen Bialkowski
Chapter 6: 22, 49 and 53.
22) The hydroxyl radical is a catalyst for ozone destruction. Show why it is considered to be a catalyst.
OH + O3 .OOH + O2
OOH + O .OH + O2
Net Reaction: O + O3 2O2
CHEM 3650 - Stephen Bialkowski
Chapter 5 Problems: 20, 37, 38, and 50.
20) Write expressions for the following catalytic chemical reactions that occur in the catalytic
Removal of CO from the exhaust stream.
o 2CO + O2
Ch. 8 Problems: 10, 25, and 45.
8) At what temperature does water reach its maximum density? What are the implications of this
property for life in a pond?
4 degrees Celsius
Because water is less dense at its freezi
Poisoned Waters and Ch. 9: 13 and 52.
Watch the "Poisoned Waters" video on PBS.
Answer the following questions
What types of water pollution are described in the video? The video talks about several types of
Chapter 1 Problems: 27, 37, and 58.
27) Define what is meant by energy? Name 4 forms of energy.
Energy is defined as the ability to do work or bring about a change. It is essentially the capacity to
make something happen. Energy
Chapter 4: 12, 32, 45.
12) Describe what is meant by atmospheric window?
The atmospheric window is the unobstructed region of the Earths infrared (IR) emission
spectrum between 7.5 and 13 micrometers, through which
Marshall Bassett (A01380594)
CHEM 3650 - Stephen Bialkowski
Chapter 3 Problems: 13, 18, 25 and 32.
Mist: A phenomenon which is caused by tiny water droplets being
suspended in the air.
Fog: Another phenomenon which is caused by tiny water drop
Ch. 15: 3, 6, 17.
3) a. Are the chemical structures of estrogen mimics similar to the structure of estrogen?
Yes they are similar. The structure of phytoestrogens is very close to estrogen.
b. Do all hormone-distrub
Ch. 18: 8, 14, 39.
8) A commercial pain relief medication contains 500 mg of acetaminophen per tablet. Assume that the
LD50 of 338 mg/kg for mice applies to humans as well. How many tablets, taken all at once, would
Chapter 8 Problems
10. At what temperature does water reach its maximum density? What are the
implications of this property for the life in a pond?
Water reaches its maximum density at 4C. This has many implications for life in a
pond because or
Chapter 6 Problems
22. The hydroxyl radical is a catalyst for ozone destruction. Show why it is
considered to be a catalyst.
The catalytic destruction of ozone occurs by two reactions where X denotes
the reactive species.
X + O3
XO + O2
XO + O
Chapter 3 Problems
12. Describe what is meant by the atmospheric window?
I t is the region between 7.5 um to 13 um, from those radiation from space can penetrate the
32. What three factors contribute to radiative forcing?
Chapter 4 problems
20. Write the following catalytic chemical reactions that occ ur in the catalytic
a. the removal of CO form the exhaust stream
CO+O 2 - - >CO2
b. the removal of unburned octane from exhaust stream
2C8H18+25O 2 - - >16CO 2+18H
Su12 Chem- 3650- LO1
22. The hydroxyl radical is a catalyst for what fraction of the total ozone destruction
in the lower stratosphere.
H2O+Hv - - >H+OH
OH+O 3 - - >OOH+O 2
OOH+O - - >OH+O 2
- - > net reaction: O+O 3 - - >2O2
49. for the following chain r
Chapter 7 Problems
10. At what temperature does water reach its maximu m density? What are the
implications of this property for life in a pond?
Water is going to reach its maximum density at 4 (39 Four degrees above
the freezing point, the ice (liq
52. Go to the EPA Web site and find the MCL for the following contaminants:
MCL of Arsenic is 0.010 mg/L
MCL of Cadmium is 0.005 mg/L
MCL of Lead is 0.015 mg/L
MCL of Benzene is 0.005 mg/L
Chapter 10 Problems
11. Assume that natural gas is pure CH4 and that the fuel used in gas barbecue grills is
a. Calculate and compare the energy released by burning 1000g of each.
CH4 (g) + 2O2 (g) - - > CO2 (g) + 2 H2O (g), 1 mole of CH4 relea
Chapters 11 and 12 Problems
49. More nuclear power plants should be built in the United States to reduce dependence on
imported petroleum and to slow global warming. Do you agree with this statement?
While I used to support the development of n
3. What is its steady-state accumulation of mercury in a person who eats 500g of
tuna daily that contains 0.2-ppm mercury?
R= (500g ) (0.2 ppm)( 1 ( mg CH3Hg/ kg tuna)/ ppm) ( 1 Kg/ 1000g)
= 0.1 mg/ day
3. Are the chemical structures of estrogen mimics similar to the structure of estrogen?
The chemical structure of phytoestrogens is similar to estrogen, and they may act as mimics
Of estrogen, so I guess this is a yes.
a. Do all hormone-disr
Chem 3650 Lo1
5. List the following organophosphate insecticides in the order of their toxicity:
M alathion, Diazinon, parathion, or dichlorvos?
Dichlorvos: Highly toxic (type A)
Parathion: highly toxic to non- target organisms (type B)