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UT CH 302 - Study guide
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CH302 Random Musings, March 24, 20051. Welcome back from Spring Break. I hope all of you had a restful and relaxing experience. The upcomingschedule for the class is pretty intense so it is necessary to get right back into the seeing of things:• Thursday, March 24: Intro to Electrochemistry and Practice Quiz 4 on Solutions• Tuesday, March 29: Electrochemistry theory and calculations and Quiz 4 on Solutions• Thursday, March 31: Advanced Topics in Electrochemistry• Tuesday, April 5: Exam 2 on Material from Chapters 12, 13, 14 and 21.2. Quiz 4 is on Tuesday and will cover the material from Chapter 14 on solutions with half the questions ontheory of mixing and the other half on colligative properties. I will be giving a practice quiz 4 at the end ofclass today. The topics for the quiz are:• ranking colligative properties for various solutions• colligative proerty calculation• coligative property calculation with stoichiometry solution• colligative property theory (vapor pressure)• practical application of colligative properties• theory of gas dissolution in liquids• theory of salt dissolution in liquids• ranking miscibility of liquids3. Exam 2 on April 5 will be worth 180 points and will include 36 questions from the material onelectrochemistry and the material on the various phases. I provided a list of the question types in the lastrandom musings before spring break. I will provide a detailed description of exam format and procedure in thenext musings, but as you prepare for the exam, be aware that the material on electrochemistry is quite a changeof pace from the stuff on gases, liquids and solids, and is often thought to be quite difficult. Moreover, therewill not be a great deal of time to learn this new material before the exam. I will be giving three lectures onelectrochemistry starting today and ending next Thursday, and the, boom, a test on the material the followingTuesday.4. The new worksheet 9 on electrochemistry will be posted this weekend and available for you to work nextweek. I really encourage struggling with it during the help sessions next week. It is the best way to come up tospeed on how to work the challenging problems that will be on the exam.5. With apologies, I will not be at the help session today. I have a doctor’s appointment. Laura will becovering for me.6. As always I want to stress how important it is that you not settle for anything less than an A in this course.Last year about this time I started seeing scores of students individually and we talked about what they could doto improve themselves. It was a lot of work—meeting with 100 students to discuss what they could do toimprove study habits and test taking strategies. But it was really rewarding to watch over 90 of them turn Dsand Fs into As and Bs on the final. Please contact my assistant Judy at 471-6176 to set up a time for us to meet.It can really make a difference in your success at UT.7. Extra credit assignment 1 is due today at noon. I have now been deluged with e-mails on the topic ofteaching science to science-haters—about 350 have come in. I have read about 200 of them. Understand that Iwill rarely be e-mailing you to confirm or comment on what you wrote, and instead a work study student willbe happily recording your participation. Don’t fret about whether you are getting credit—at the end of thesemester when you view you grades, if somehow the credit wasn’t posted, just e-mail me and we will fix it.8. Extra credit assignment 2. For ten points, you must do the following:• Think deeply about the reasoning behind why the various colligative properties happen (freezing pointdepression, vapor pressure lowering, boiling point elevation, osmotic pressure.) Then for ONE of theseproperties, explain the theory behind why it happens. Specifically, the argument made must be athermodynamic one that involves saying the word entropy several times. So when you write youranswer to me, it must include a reference to entropy (or entropic or disorder or other synonyms) to becorrect. It should take you a minimum of three or four sentences to do it properly in context.• The answer to this question is not hard to find. It is in my notes, my course packet, the text book andjust about anywhere general chemistry concepts are taught well. However I do not simply want youplagiarizing material. I want you to think through the ideas, put them into your own words, and thenwrite them down. It might be good to practice explaining them out loud to someone. I don’t mind ifyou work together to find the answer. But I do not want you to write an answer word for word fromanother source. If you do this, it will be considered academic dishonesty and you will be punished.• Submit your answer with the subject: Colligative Property Extra Credit to [email protected].• Start the extra credit answer with your name and your UTEID• End the extra credit by mentioning your sources for learning the material (the text, the notes, friends,etc.)• Due date for this extra credit is April 5 at noon.9. A preposterous response (she swears it is true) to Extra Credit assignment 1:Well it all began in South Padre Island when our time for spring break was waning. Strictly for educationalpurposes, I decided to stage an event that would not only teach some people a little chemistry, but it would alsohumiliate this really mean girl. This rude girl who shall remain nameless, always brags about having hugebreasts. This is really annoying especially because my current boyfriend used to date her, and he said that she isfull of it because her bras and swimsuits are more like throw pillows. Strictly in the name of science I decidedto put my plan into action. She asked me to tie her bathing suit top, but instead of really tying it, I made areally loose bow so it would fall of easily. She expectedly sauntered around the pool and made here way to thediving board to perform a graceful dive. She bounced up and down, and dove into the water. This is where itreally gets interesting. Her swimsuit top bubbled up to the surface, and I yelled to an accomplice across thepool, "Look, because of water's strong intermolecular forces, the bathing suit can sit on the water because it isheld up by the surface tension of the water. The reason that water


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UT CH 302 - Study guide

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