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Chemistry 141  Fall 2005

Chemistry 141  Fall 2005. Cary Willard Office 314 Phone 644-7427 cary.willard@gcccd.edu www.grossmont.edu/cary.willard/. Lecture Lab MW 11:00am-12:15 pm TTh 2:00-4:50 pm Office Hours Monday 12:30 – 1:20 pm (314) Tuesday 11:00-12:50 pm (313) Wednesday 12:30-1:20 pm (314)

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Chemistry 141  Fall 2005

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  1. Chemistry 141  Fall 2005 • Cary Willard • Office 314 • Phone 644-7427 • cary.willard@gcccd.edu • www.grossmont.edu/cary.willard/

  2. LectureLab • MW 11:00am-12:15 pm TTh 2:00-4:50 pm • Office Hours • Monday 12:30 – 1:20 pm (314) • Tuesday 11:00-12:50 pm (313) • Wednesday 12:30-1:20 pm (314) • Thursday 11:00-11:50 pm (314) • Friday by appointment

  3. This course is the first semester of the two-semester general chemistry course for science, engineering, and pre-professional majors • You should know how to do stoichiometry, solution problems, and the gas laws. • You should know basic chemical nomenclature. • You must be comfortable working with basic laboratory equipment such as balances, burets, pipets, etc.

  4. Prerequisites • Chemistry 120 or consent of instructor. • Good working knowledge of intermediate algebra.

  5. Text • Chemistry by McMurry and Fay 4th edition • Study Guide and solutions manual also available. • Lab Book by Grossmont Faculty

  6. Additional Requirements • Spiral Bound Homework Notebook • Safety Glasses • Covered Shoes • Non-erasable Ink Pen • Scientific Calculator with Logs and Exponents • Master Lock

  7. Grading • Quizzes 15% • Exams 35% • Assignments 10% • Lab 25% • Final Exam 15%

  8. Grading Scale • A 88% • B 78% • C 67% • D 55% • Must pass both lab and lecture to pass course!

  9. Make-up Policy • Quizzes - No make up allowed. Lowest quiz will be dropped. • Exams - Must be make up within 1 week of original test date. (With a reasonable, verifiable excuse).

  10. Late Work • Labs - lose 20% per week late. No labs accepted more than 2 weeks late. Due dates on schedule. • Computer assignments lose 50% if completed late.

  11. Attendance • Regular attendance is mandatory - you may be dropped if you miss more than 9 hours of class (1 week). • You will not be dropped if you have not checked out of the laboratory! This means you will receive an F!!!!

  12. Academic Integrity Policy • All work must be your own! • Calculators will not contain cheat sheets! • See college catalog for more information, as well as the Grossmont Chemistry Departments Academic integrity Policy.

  13. Disabled Students • Students with disabilities who may need accommodations in this class are encouraged to notify the instructor and contact Disabled Student Programs & Services (DSPS) early in the semester so that reasonable accommodations may be implemented as soon as possible. Students may contact DSP&S in person in Room 110 or by telephone at (619) 644-7112 or (619) 644-7119 (TTY for deaf).

  14. What is Chemistry? • Chemistry is the science of the properties, composition, and behavior of materials. • Chemistry is the science concerned with describing and explaining the different forms of matter and the chemical reactions or matter.

  15. Branches of Chemistry • Applied Chemistry - the search for and isolation of useful materials. • Theoretical Chemistry - Provides a chemical view of nature and explanations of natural processes.

  16. Chemistry is the Central Science

  17. Scientific Method • Observation – a statement that accurately describes something we see, hear, taste, feel, or smell. • Conclusion – a statement that is based on what we think about a series of observations.

  18. Observations and Conclusions • Before fermentation, grape juice is very sweet and contains no alcohol. • After fermentation, the grape juice is no longer as sweet and it contains a great deal of alcohol. • In fermentation, sugar is converted into alcohol.

  19. Observations and Conclusions • During fermentation, bubbles of a colorless, odorless gas form in the grape juice. • In fermentation, sugar is converted into alcohol and a colorless gas.

  20. From Scientific Method • Laws - observations that are consistent • Theories or Models - unifying explanation for a set of observations, facts, and laws

  21. Empirical facts (observations, data) Scientific laws (tested generalizations) Hypothesis (tentative explanation) Theory (tested explanation)

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