Equilibrium Application Project PDF

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SCH4U

Name: __________________________

Chemical Systems and Equilibrium: Applications of Equilibrium Systems The principle of equilibrium applies to a variety of biochemical, biological and technological systems. Pick one of the following questions to answer. You must describe the chemical process and how equilibrium is applied as part of your explanation. Present your information in the most creative way you can! ***Projects should not exceed 8.5 x 11 (if paper-based) or the size of a shoe box.*** 1. Why do scuba divers need to worry “the bends”? 2. Why are headache tablets buffered? 3. How do kidney stones form? 4. How do gallstones form? 5. What is the Haber process? 6. How are areas remediated when affected by heavy metal contamination? 7. Why is barium sulfate safe to use for X-rays of the digestive system even though barium ions are poisonous? 8. How do chemicals dissolved in blood maintain a blood pH level between 7.2 & 7.4? 9. How does equilibrium play a role in the production of sulfuric acid? 10. How do municipalities deal with the issue of sedimentation in water systems? 11. How is table salt, NaCl, purified? 12. Why is high calcium ion (Ca2+), concentration in the city’s water supply a problem? 13. How does a halogen lamp operate? 14. Why does Aspirin irritate the stomach? 15. Why are toothpastes and drinking water fluorinated? 16. Why do long-distance runners worry about their lactic acid threshold? 17. Explain why limestone caves are in danger due to large number of visitors? 18. How does the production of nitric oxides from engines affect the atmosphere? 19. Why do different types of soils react differently to acid rain? 20. What is alkalosis and how does it develop? 21. How do dry cleaners use liquid carbon dioxide to clean clothes? 22. Is it feasible to extract gold in the form of AuCl and AuCl3 from seawater? 23. Why is the consumption of sweets bad for your teeth? 24. Why do different lakes have different buffer capacities? 25. Why is it necessary to superchlorinate (“shock treatment”) a swimming pool? 26. How does gout develop? 27. What is the Claus process? 28. How are people who live in high altitudes adapted to their environment? 29. How would hospitals treat carbon monoxide poisoning? 30. How do cells ensure that they absorb the maximum possible amount of nutrients? ***You need to use ACADEMIC sources of information: Use at least three (3) sources of information. A reference list is required and all information needs to be sourced. NO WIKIPEDIA/HOW STUFF WORKS/YAHOO ANSWERS/ABOUT.COM!!*** Due date: __________________________

Success Criteria Rubric: Level 1 Category 5.0-5.9

Content Knowledge

Student does not have grasp of chemical process: student did not convey content appropriately.

Link to Equilibrium

Student does not have grasp of how equilibrium applies and cannot make connections.

Creative Presentation

Student presents information in an uninspired format; little effort put in to make information interesting.

Category

Grammar and Spelling

Neatness

References

TOTAL:

Level 1 1.0-1.9 Work has four or more spelling errors and/or grammatical errors.

Work is illegible.

Work displays no references.

Level 2 6.0-6.9 Knowledge Student is uncomfortable with chemical process and is somewhat able to convey content. Application Student is uncomfortable with how equilibrium applies.

Student presents information in a way that does not enhance the information, but effort is put in. Communication Level 2 2.0-2.9 Presentation has three misspellings and/or grammatical errors. Work has three or four areas that are sloppy. Work does not have the appropriate number of required references.

Level 3 7.0-7.9

Level 4 8.0-10.0

Student is at ease with chemical process but fails to elaborate.

Student demonstrates full knowledge of chemical process (more than required).

Student is at ease with how equilibrium applies, but fails to elaborate.

Student demonstrates full knowledge (more than required).

Student presents information in an interesting way but some components are similar to other projects.

Student presents information in an interesting, unique way that represents information well.

Level 3 3.0-3.9 Presentation has two misspellings and/or grammatical errors. Work has one or two areas that are sloppy. Reference section was completed incorrectly.

Level 4 4.0-5.0 Presentation has no misspellings and/or grammatical errors. Work is done neatly. Work displays the correct number of references written correctly. /45...