notes_Week 1_Fall09

notes_Week 1_Fall09 - Do you plan to be a major in...

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Do you plan to be a major in… Chemistry / Biochemistry / Bioengineering Pre-med / Pre-dental … Or any advanced science/math subject? If so, we encourage you to consider enrollment in Chem144 (Advanced General Chemistry) instead of Chem142 (General Chemistry), which is where you are now. Chem144 is designed for students who: - have taken high-school chemistry - have taken or are currently enrolled in calculus (Math 124 or 134 involving the calculus of functions of a single variable) The first class of Chem144 is on Thurs, Oct. 1 at 12:30pm in Bagley 131 (tomorrow). Both classes use the same textbook.
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WebAssign and Clickers
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Key Points From Syllabus • Lectures are on Mondays, Wednesdays and Fridays 8.30am, Kane 120. • Weekly homework assignments. • Weekly quiz sections with TA’s. • Two midterms. • One final exam.
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Examinations • Mid Term 1 – October 23 rd Chapters 1-3 – In here, 50mins. • Mid Term 2 – November 20 th Chapters 4-6 – In here, 50mins. • Final Exam – December 15 th All Chapters! – In here, 110mins.
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Hard Practice, Easy Exams
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Linus Pauling (Nobel Prize Winner) - 1967 “ Chemistry is not a spectator sport, you must become involved, and that means that you must do homework!”
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Course Weights • 2 midterm exams (50 min) 30% • Homework (lowest HW score dropped) 12% • Clicker questions in class 4% • Laboratory 20% • Final exam (110 mins) 34% ------------------------------------------------------------------ Total 100%
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“Not all chemists wear white coats” What is Chemistry? How does one ‘do’ Chemistry? Who does Chemistry?
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Chemistry is…. • An Observational Science • An Experimental Science • A Laboratory and Computer Science • An Interesting Science • A Very Important Science for Humanity
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The Scientific Method • Information or data is gathered by careful observation of the phenomenon being studied. • On the basis of that information a preliminary hypothesis is formed. • A series of experiments is devised to test the predictive power of the hypothesis.
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The Scientific Method (cont.) (a) Accepted as scientific law or theory. (b) Modified so that all results are adequately explained. (c) Discarded. On the basis of the experimental tests, the hypothesis may be
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Demo 1 Hydrogen Balloon
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2 (g) + O 2 (g) = 2 H 2 O (g) + Energy Hydrogen and oxygen are diatomic gases! (H 2 and O 2 ) Water can be a gas! ENERGY was given off!-- This is characteristic of an exothermic reaction ! This is a balanced
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notes_Week 1_Fall09 - Do you plan to be a major in...

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