CEM 141 Blog http://docott.com/141 Official Blog for General Chemistry I at Jackson Community College Thu, 28 Aug 2008 14:26:40 +0000 http://wordpress.org/?v=2.2.1 en Questions for MQ2 (9/2 M (T) quiz) http://docott.com/141/2008/08/28/questions-for-mq2-92-m-t-quiz/ http://docott.com/141/2008/08/28/questions-for-mq2-92-m-t-quiz/#comments Thu, 28 Aug 2008 14:26:40 +0000 Doc Ott http://docott.com/141/2008/08/28/questions-for-mq2-92-m-t-quiz/ 1. The density of ethanol is 0.7983 g/ml. What is the volume of 4.5 kg of ethanol?
2. What are the four tenets of Dalton’s Atomic Theory?
3. A particular system did 45J of work on the surroundings. At the same time it absorbed 23 J of heat energy from the srroundings. What is the change in internal energy of the system?
4. What were the major atomic structure ‘conclusions’ from Rutherford’s Experiement?
5. Give the complete chemical symbol for the following species:
a. neutral zinc-66.
b. sodium-23 isotope in its common ionic state
c. bromine-81 is its common ionic state
6. Correctly name the ions in 5b and 5c above
7. Calculate the energy of a photon whose wavelength is 8.0 nm (n is metrix prefix which means 1.0 x 10-9)
You will be give the following equations and constants ONLY
E = hv c = 3.0 x 108 m/s h = 6.626 x 10-34 J sec

]]> http://docott.com/141/2008/08/28/questions-for-mq2-92-m-t-quiz/feed/ Lab for 9/2, 9/3 http://docott.com/141/2008/08/27/lab-for-826-827/ http://docott.com/141/2008/08/27/lab-for-826-827/#comments Wed, 27 Aug 2008 13:27:54 +0000 Doc Ott http://docott.com/141/2008/08/20/lab-for-826-827/ Sugar in your soda
Make sure you read what you need to bring to lab.
Last weeks lab:Penny Density

]]> http://docott.com/141/2008/08/27/lab-for-826-827/feed/ Grades as of 8/26 http://docott.com/141/2008/08/26/grades-as-of-826/ http://docott.com/141/2008/08/26/grades-as-of-826/#comments Tue, 26 Aug 2008 18:37:54 +0000 Doc Ott http://docott.com/141/2008/08/26/grades-as-of-826/ As posted by your blue 4 digit number
Grades as of 8/26

]]> http://docott.com/141/2008/08/26/grades-as-of-826/feed/ Unit conversion worksheet http://docott.com/141/2008/08/25/unit-conversion-worksheet/ http://docott.com/141/2008/08/25/unit-conversion-worksheet/#comments Tue, 26 Aug 2008 00:33:43 +0000 Doc Ott http://docott.com/141/2008/08/25/unit-conversion-worksheet/ For the many of you who are having issues with unit coverversion stuff, I HIGHLY recommend you print out this 2 page worksheet and plow through it. It was written partly by me and should help, but you actually have to do it. Let me know if it helps or if it can be improved.
Unit Conversion (aka DImensional Analysis) Worksheet

]]> http://docott.com/141/2008/08/25/unit-conversion-worksheet/feed/ Asking questions about Monday quiz ’study’ problems http://docott.com/141/2008/08/25/asking-questions-about-monday-quiz-study-problems/ http://docott.com/141/2008/08/25/asking-questions-about-monday-quiz-study-problems/#comments Mon, 25 Aug 2008 10:42:50 +0000 Doc Ott http://docott.com/141/2008/08/25/asking-questions-about-monday-quiz-study-problems/ The Monday quiz is really the closest thing to a test that I have. Even though the questions will be slightly changed, their essense is the same so the questions being posted on Thursday represent a psuedo take-home test.

Because of that, I will not be providing you with the answers to the questions nor helping you do the problems except to answer questions like ‘I do not understand what the question is asking’. Clarification questions are prefectly fine. “Is this the rigth answer” kind of questions are not.

If you want to know if you did it right, I strongly suggest you search for answers from the crew of people you consult with for in-class problems, each other.

]]> http://docott.com/141/2008/08/25/asking-questions-about-monday-quiz-study-problems/feed/ How to be successful in CEM 141 (according to you) http://docott.com/141/2008/08/20/how-to-be-successful-in-cem-141-according-to-you/ http://docott.com/141/2008/08/20/how-to-be-successful-in-cem-141-according-to-you/#comments Wed, 20 Aug 2008 13:25:02 +0000 Doc Ott http://docott.com/141/2008/08/20/how-to-be-successful-in-cem-141-according-to-you/ Remember, the more of these you do, the better off you will be.
1. Read the text
2. Ask questions
3. Re-write your notes
4. Use online resources
5. Look ahead when possible
6. Study groups
7. Come to class
8. Do the review questions
9. Office hours
10. Sleep
11. Bring your junk to class
12. Pay attention
13. Don’t cheat
14. Notecards
15. Be proactive
16. Eat healthy
17. Read before bed
18. Use CSS
19. Draw appropriate pictures
20. Follow directions
21. Positive attitude

]]> http://docott.com/141/2008/08/20/how-to-be-successful-in-cem-141-according-to-you/feed/ Document reference http://docott.com/141/2008/08/04/what-to-do-after-class-today-818/ http://docott.com/141/2008/08/04/what-to-do-after-class-today-818/#comments Mon, 04 Aug 2008 16:06:16 +0000 Doc Ott http://docott.com/141/2008/08/04/what-to-do-after-class-today-818/ Course Syllabus

Lab safety stuff you are responsible for

]]> http://docott.com/141/2008/08/04/what-to-do-after-class-today-818/feed/ Email Etiquette http://docott.com/141/2008/01/28/email-etiquette/ http://docott.com/141/2008/01/28/email-etiquette/#comments Mon, 28 Jan 2008 23:04:35 +0000 Doc Ott http://docott.com/141/2008/01/28/email-etiquette/ If you would like me to respond to e-mail, you need to have a little bit of etiquette. The most obvious is to indicate who you are. I do not memorize your email address, so I cannot recognize thedudeman99@whatever.com as you. Pretend this like a semi formal letter. All you have to do in mention your name.

Some professionalism is appropriate. I am not your buddy who you send email jokes too. I am your college chemistry professor. No need to send me some cool chemistry joke you got from a friend. Trust me, I saw it long before you did.

]]> http://docott.com/141/2008/01/28/email-etiquette/feed/ Help with dimensional analysis and sci. notation http://docott.com/141/2008/01/09/help-with-dimensional-analysis-and-sci-notation/ http://docott.com/141/2008/01/09/help-with-dimensional-analysis-and-sci-notation/#comments Wed, 09 Jan 2008 21:00:59 +0000 Doc Ott http://docott.com/141/2008/01/09/help-with-dimensional-analysis-and-sci-notation/ A nice little website with some good info

]]> http://docott.com/141/2008/01/09/help-with-dimensional-analysis-and-sci-notation/feed/ Slideshare - Atoms http://docott.com/141/2008/01/04/slideshare-atoms/ http://docott.com/141/2008/01/04/slideshare-atoms/#comments Fri, 04 Jan 2008 16:24:17 +0000 Doc Ott http://docott.com/141/2008/01/04/slideshare-atoms/
SlideShare | View | Upload your own
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