CHEM PROJECT FOR 2nd Quarter 09-10

Chemistry Writing Project
Dyad - Choose your own partner!

Radium: Narrative of a Moral Dilemma

We are all faced on occasion with a hard choice in life. Telling a narrative about a conflict in which you have had to make a difficult decision contributes to your personal growth. This assignment is about becoming a character in an ethical real life dilemma faced by medical researchers and patients whenever there is a breakthrough in the development of a procedure or drug to cure a disease. Take the time to explore how you might feel if you were the patient.
Your narrative must contain very specific information about Radium and its discovery in addition to the creation of a fictional character whose feelings, behavior and responses you must describe as if they were your own.
Background Information: You may combine the answers to questions in a paragraph, but include the requested information.
What are the chemical properties of the element, Radium? Where did the name of this element come from?
Briefly describe the life of Marie Curie. Was she always a scientist or did she have other occupations? Be sure to include when and how she discovered Radium. What are the theories about how she died? What was unusual about her life as a scientist?
What knowledge was available about the hazards of Radium exposure prior to 1940?
Scenario
You have been notified that old medical records, thought long lost by the military, have been located in an old basement. These records show that you were treated on four occasions with Radium by placing a capsule in your nose to treat chronic nose bleeds that you experienced when you were a soldier (male or female) in World War II during 1943. You were told at the time when you received the 2 hour exposures that the treatment was safe and that you were also a part of a group of military personnel who were undergoing the experimental use of Radium to control superficial bleeding vessels. You considered the treatment very successful, having been freed from what had become an unpleasant and dangerous health problem.
For the past several years you have been facing chronic sinus infections and pain. A recent x-ray of your skull has revealed some abnormal bone growth in the area of you nasal passages, but there is no evidence of cancer. You are also experiencing gum disease and having some trouble with your teeth becoming loose from the bone tissue. It is now 1994 and you are trying to assess the impact on your life.
Some personal information: You were born in 1924, and are currently married with three adult children, one of whom is mentally challenged, still lives at home and is financially dependent. You are receiving a veteran's pension with medical coverage for yourself but the money does not take care of the expenses of your dependent 45 year old son, who has a heart defect. A reporter has approached you for a magazine article about how this medical news might affect you and your family.
Be creative and invent some dialogue to respond to the questions asked by the reporter. You are considering your options with the Army, who is denying responsibility, and are interested in having the truth told. Weave a story in first person incorporating some of the ideas below. I encourage you to create your own questions too. It is important that what you have your character say is believable and consistent with common sense and medical knowledge. You might need to look at information about sinuses, gum disease and birth defects associated with Radium if that is part of your response.
Provide an introductory statement which includes a physical description and the sex (the person may be either male or female) of your character. Any comments to the following reporter's questions should be gender consistent. At some point in the essay clearly state the moral dilemma) that you think your character is facing.
Questions:
What caused you to seek the assistance of the Army doctors? How much was explained to you in 1943 about your treatment? Did the Army doctors give you any information about the side effects of Radium exposure? What did they tell you? Did you know Radium was inside the capsule?
How did you feel physically after the treatments? Were they painful? Did you feel ill afterwards? Did they fix your problem?
When did you find out that there may be some long term problems associated with the treatments? Has the Army notified you of any potential problems yet? Are you part of a group of people being watched now for complications? Do you have any current health complaints? Do you think any of your complaints are related to your old exposure?
Can you share with me what went through your mind when you first read the article after you found out about your old records? How did this affect you? How did this affect your family?
Are you worried about having any complications now? Do you think your sinus or dental problems are related to the Radium treatments? What do your current doctors or dentists say?
What do you think the Army should have done differently in 1943? Do you think it was a mistake for you to participate in the trials?
What do you think the Army should do now about the 80,000 documented Radium exposures to military personnel and their families? The Army's official position is that Radium was and is a safe treatment for certain types of medical problems. Do you think the Army should be responsible for long term care of victims? What types of conditions do you think the Army should be responsible for?
Has any one suggested that your son's problems might have been related to your Radium? Have you asked the Army doctors for additional help in this area? What were their responses?
What are your plans for the future? What would you like to see happen?

Your grade will be based on the following specific criteria:
Format:
a. The story is neatly typed/written and sufficient in length to write at least a one page magazine article from the information provided. This represents about 1,000 words.
b. Use short bond paper, 1.5 spacing, Arial 11, 1 inch margins on all sides.
c. Spelling and grammar have been checked. There are no sentence fragments, run-ons or paragraphs which lack good construction.
d. Perfect score : 50 points

Content:
The story line is believable and contains sufficient facts to demonstrate that you have researched the required areas. Some of the material maybe fiction, but must be consistent with known facts.
The character is developed in a compassionate fashion so that the reader (me) could easily feel the position of the character described.
The story clearly describes at least two ethical dilemmas and offers insight into the feelings of the individuals involved and potential plans of action.


DUE DATE : SEPTEMBER 22, 2009 (Wednesday)

ASSIGNMENT IN CHEMISTRY

Assignment in Chemistry for 3-Campion, 3-Gonzaga and 3-Pignatelli

TOPIC: Radioactivity and Nuclear Stability

Click on the links below.

http://www.orcbs.msu.edu/radiation/resources_links/historical_figures/historical_figures.htm


Answer the following questions.
Type your answers and print it in a clean short bond paper. I will not accept handwritten assignment.
Answers only.
Submit this assignment on Sept.15, 2009, before 7:30 AM
You may also search other internet websites for the answers to the given questions.

QUESTIONS:
Click this link to answer the following questions:
http://www.accessexcellence.org/AE/AEC/CC/historical_background.php

1. Who discovered x-rays in 1895?
2. What part of the body was pictured using x-rays?
3. Study the picture carefully and make a hypothesis as to what the person was wearing on one of their fingers.
4. Name the scientist who initially thought that the sun’s energy was being absorbed by a uranium sample which then emitted x-rays.
5. Briefly describe the circumstances that lead the scientist in question #4 to change his hypothesis about the sun’s energy and the uranium sample.
6. Refer to #5 : What had been discovered?
7. How was the natural radiation different from x-rays?
8. Who coined the word “radioactivity”?
9. What are the elements did the scientist in #8 discover?
10. Who is known as the father of nuclear physics?
11. Elements such as uranium, thorium and plutonium undergo a change in the nucleus by emitting radiation which changes the original (parent) element into another element known as ___(a)___ element. This radioactive ___(b)___ process continues until the element produced is no longer radioactive.
12. What are the three types of nuclear radiation? Describe each type.
13. What is meant by “half-life”?
14. What is the term applied to the process of changing one element into another element through nuclear decay?
15. What do you call the process of splitting an atom’s nucleus into two nuclei with smaller masses?
16. What is the atomic bullet that causes the U-235 nucleus to split into two?
17. Explain nuclear chain reaction?
18. Who achieved the first man-made self-sustaining nuclear chain reaction?
19. What are the great scientific implications of his discovery?

Click on this link:
www.wikipedia.org/wiki/Manhattan_Project
20. Why was the Manhattan Project developed?
21. What are the fuels used in the bombs dropped in Nagasaki and Hiroshima during WW II?
22. What are the ways that inanimate object were damaged or destroyed in both Nagasaki and Hiroshima blasts?
23. What were the causes of human casualties in Hiroshima and Nagasaki?
24. What is ‘flash burn’?
25. What is meant by ‘ground zero’? What is it like there?
26. Describe what happened in the outlying areas of Hiroshima?
27. How much harmful radiation existed in Hiroshima and Nagasaki after the explosion?

You may also try these links:
www.yale.edu/lawweb/Avalon/abomb/mp03.htmlwww.yale.edu/lawweb/Avalon/abomb/mp04.html

guide questions sa chem

For the classes of ...3-Gonzaga, 3-Campion, 3-Pignatelli

here are the websites you need to browse...

www.quarked.org/gamezone
http://highered.mcgraw-hill.com/sites/0072512644/student_view0/chapter2/animations_center.html
www.mhhe.com/physsci/chemistry/essentialchemistry/flash/ruther14.swf


Guide questions: write your answers in a 1 whole sheet of paper
1. What is a cathode ray tube? How does it work?
2. What was Thomson’s striking observations when he was doing his experiment?
3. What is the most important conclusion did Thomson make for his experiment?
4. How come Thomson called his atomic model the “Plum Pudding Model”?
5. Why was the cathode ray tube (CRT) a significant instrument in deciphering the structure of matter?
6. Why did the scientific community, at that time, willingly accepted Thomson’s atomic model?How did Millikan measure the charge of a single electron?

Submit your answers on Monday, Sept. 7...b4 730AM

Here's the pabaon for the 4-days of no classes....

Each problem must be placed in a 1/4 of a long sized
bond paper, then landscape orientation, problems may be printed but the solutions must be handwritten. Use black or blue ink.

60-point project -- 50 points for the problem, ten points for the technical aspect

Have a nice break!!!!!!

PROBLEM SET

A. Heat

Refer to the table below for some constants:

substance	Melting point °C	Boiling point °C	Hv cal/g	Hf cal/g
Ethyl alcohol	-117	78.3	204	24.9
Carbon tetrachloride	-23	76.7	52.1	4.2
Water	0	100	540	80

1. Calculate the amount of heat, in kilojoules, necessary for each of the following changes:

a. to melt 18.5 grams of ice at 0 °C.

b. to liquefy 0.780 mole of ethyl alcohol at its freezing point.

c. to vaporize 8.75 grams of carbon tetrachloride at its boiling point.

d. to convert 0.750 kg of liquid water to steam at 100 °C.

e. to convert 2.45 grams of ice at °C to water at 27.5 °C.

f. to convert 125 grams of water at 85.0 °C to steam at 100 °C.

g. to raise the temperature of 3.25 moles of water from 0 °C to 32.4 °C.

h. to convert 1.35 grams of water at 35 °C to steam at 100 °C.

i. to convert 2.75 kg of ice at 0 °C to steam at 100 °C.

j. to convert 124 grams of ice at 0 °C to water at 25 °C.

2. Calculate the amount of heat given off when 380.0 grams of steam at 100 °C is converted to ice at 0 °C.

3. Calculate the number of molecules of water that could be heated from 20 °C to 25 °C by the heat evolved on condensing 85 grams of water vapor to liquid at the boiling point.

4. Calculate the final temperature of the mixture of 100.0 ml of water at 92.0 °C and 150.0 ml of water at 24 °C.

5. The specific heat of ethanol (ethyl alcohol) is 2.48 J/g °C for the liquid and 1.60 J/g °C for the vapor. Calculate the heat required to change 5.0 grams of liquid ethanol at 0 °C to 5.0 grams of ethanol vapor at 100 °C.

B. Mole Problems

6. Calculate the mass in grams of 1 mole of each of the following:

a. CaCrO₄ c. Na₂C₂O₄

b. CaSO₄ d. C₆H₁₂O₆

7. Calculate the number of moles of the following:

a. 4.80 grams of Aluminum

b. 2.00 x 10²⁴ atoms of Sodium

c. 8.25 grams of NaCl

d. 78.0 liters of CH₄ at STP

e. 4.86 x 10²⁶ molecules of Cl₂

8. Calculate the number of molecules in each of the following:

   1. 2.50 lb of NH₃

   2. 0.020 mg of SO₂

   3. 1.25 gal of water

   4. 0.015 mg of carbon dioxide

   5. 8.07 mol of CH₄

8. Calculate the mass, in grams, of each of the following:

   1. 1.80 mol CO₂

   2. 2.25 x 10²² molecules of water

   3. 0.25 mol of SO₃

   4. 9.25 liters of NO₂ @ STP

   5. 2 formula units of Al₂(SO₄)₃

8. Calculate the amount of heat, in Joules, necessary to carry out each of the following temperature changes:

   1. 4.20 x 10²⁴ molecules of water from 0°C to 20°C.

   2. 8.20 x 10²³ atoms of zinc from 15 °C to 55 °C (c_Zn = 0.092 cal/g °C)

   3. 2.10 x 10²⁵ atoms of tin from 10 °C to 85 °C (c_Sn = 0.054 cal/g °C)

C. Gas Problems

8. A sample of gas occupies a volume of 625 mL at 22 °C and 1.12 atm.

   1. Calculate the new pressure, in atmospheres, if the volume is changed to 750. mL and the temperature is changed to 27 °C.

   2. Calculate the volume at STP.

   3. Calculate the new temperature, in Kelvin, if the volume is changed to 535 mL and the pressure is changed to 750 mm Hg.

8. Calculate the density of each of the following:

   1. carbon dioxide at STP

   2. nitrogen gas at 20 °C and 745 torr

   3. helium gas at 25 °C and 775 mm Hg

   4. NO₂ gas at STP

8. Calculate the molecular weight of each of the following gases:

   1. a gas whose density id 1.75 g/L at STP

   2. a volume of 125 mL of a gas at STP has a mass of 0.420 grams.

   3. a gas whose density is 1.25 g/L at 0.75 atm and 20 °C.

   4. a volume of 245 mL of gas at 27 °C and 740 torr has a mass of 0.825 grams.

8. Calculate the volume of each of the following:

   1. 4.25 grams of O₂ gas at STP

   2. 0.530 g of Helium at 100 °C and 730 torr

   3. 8.25 f of Ne gas at 150 °C and 1.45 atm

8. Calculate the final temperature in degrees Celsius when 142 mL of gas measured at 480 torr pressure is allowed to expand to a volume of 200. mL at constant temperature.

=end=

due on Sept. 22, 2008

with volleybelles

left photo:me with kulot...training quarter for DAVRAA

top photo: shot b4 DAVRAA parade in Mati