Session Start: Tue Mar 24 13:23:03 2009 Session Ident: #Chemistry [13:23] * Now talking in #Chemistry [13:23] * chemistry.gravitywaves.com sets mode: +nt [16:00] * DrSturm has joined #Chemistry [17:14] * liz has joined #Chemistry [17:14] hi [17:15] * liz has quit IRC (Quit: Leaving) [17:54] * DrSturm has quit IRC [17:54] * Disconnected Session Close: Tue Mar 24 17:54:33 2009 Session Start: Tue Apr 07 11:42:05 2009 Session Ident: #Chemistry [11:42] * Now talking in #Chemistry [11:42] * chemistry.gravitywaves.com sets mode: +nt Session Start: Tue Apr 07 12:49:41 2009 Session Ident: #Chemistry [12:49] * Now talking in #Chemistry [12:49] * chemistry.gravitywaves.com sets mode: +nt [15:59] * DrSturm has joined #Chemistry [17:27] * Hippo has joined #Chemistry [17:27] * Hippo has quit IRC (Quit: Leaving) [17:54] * DrSturm has quit IRC [17:54] * Disconnected Session Close: Tue Apr 07 17:54:50 2009 Session Start: Tue Apr 14 12:52:23 2009 Session Ident: #Chemistry [12:52] * Now talking in #Chemistry [12:52] * chemistry.gravitywaves.com sets mode: +nt [15:58] * DrSturm has joined #Chemistry [15:58] * carbon has joined #Chemistry [15:58] * carbon has quit IRC (Quit: Leaving) [15:58] * DrSturm has quit IRC (Read error: Connection reset by peer) [16:02] * DrSturm has joined #Chemistry [17:54] * DrSturm has quit IRC (Quit: Leaving) [17:54] * Disconnected Session Close: Tue Apr 14 17:54:46 2009 Session Start: Tue Apr 21 12:22:55 2009 Session Ident: #Chemistry [12:22] * Now talking in #Chemistry [12:22] * chemistry.gravitywaves.com sets mode: +nt [16:02] * DrSturm has joined #Chemistry [17:01] * Jamie has joined #Chemistry [17:01] Hello, can anybody please help me with chem? [17:02] Are you enrolled in CHE 102 at CSUDH? [17:04] * Jamie has quit IRC (Quit: Leaving) [17:47] * Disconnected Session Close: Tue Apr 21 17:47:49 2009 Session Start: Tue Apr 28 11:14:21 2009 Session Ident: #Chemistry [11:14] * Now talking in #Chemistry [11:14] * chemistry.gravitywaves.com sets mode: +nt [13:45] * cathlicj has joined #Chemistry [13:45] * cathlicj has quit IRC (Quit: Leaving) [16:04] * DrSturm has joined #Chemistry [16:23] * ProfSturm has joined #Chemistry [16:24] * ProfSturm has left #Chemistry [16:24] * DrSturm has quit IRC (Quit: Leaving) [16:25] * DrSturm has joined #Chemistry [16:44] * pampam has joined #Chemistry [16:44] hello [16:47] Do you have a question? [16:47] in my organic lab we synthesised a pyrrole, and used 1 drop of HCl, we are asked what would happen if more the one was used, why? [16:48] This chat is only for students at CSUDH in Introductory or Biochemistry. [16:48] oh it said organic chem sorry, so no answer? [16:50] Members of the CSUDH community. [16:50] * pampam has quit IRC (Quit: Leaving) [17:53] * Disconnected Session Close: Tue Apr 28 17:53:25 2009 Session Start: Tue May 05 15:18:40 2009 Session Ident: #Chemistry [15:18] * Now talking in #Chemistry [15:18] * chemistry.gravitywaves.com sets mode: +nt [15:57] * DrSturm has joined #Chemistry [16:23] * abcd has joined #Chemistry [16:24] Hello Dr.Sturm! In cholesterol synthesis, do we need to know the steps from squalene to cholesterol? [16:24] No. [16:26] Should we be able to explain the diagram for the receptor mediated mechanism of action of ANP and angiontensin II in words? [16:26] Yes. [16:28] We should know the intermediates and the enzymes for each pathway on this exam? [16:28] For the mineralo-, gluco-corticoids and the sex steroid hormones [16:29] Thank You. [16:29] * abcd has quit IRC (Quit: Leaving) [17:46] * Disconnected Session Close: Tue May 05 17:46:59 2009 Session Start: Tue May 12 11:54:47 2009 Session Ident: #Chemistry [11:54] * Now talking in #Chemistry [11:54] * chemistry.gravitywaves.com sets mode: +nt [12:14] * Disconnected Session Close: Tue May 12 12:39:01 2009 Session Start: Tue May 12 12:39:13 2009 Session Ident: #Chemistry [12:39] * Now talking in #Chemistry [12:39] * chemistry.gravitywaves.com sets mode: +nt [16:01] * DrSturm has joined #Chemistry [17:53] * DrSturm has quit IRC (Quit: Leaving) [17:53] * Disconnected Session Close: Tue May 12 17:53:41 2009 Session Start: Mon Jun 01 07:12:38 2009 Session Ident: #Chemistry [07:12] * Now talking in #Chemistry [07:12] * chemistry.gravitywaves.com sets mode: +nt [09:18] * marygrac has joined #Chemistry [09:37] * marygrac has quit IRC (Quit: Leaving) [09:38] * marygrac has joined #Chemistry [09:50] * mike has joined #Chemistry [09:50] * mike has quit IRC (Quit: Leaving) [09:51] * Jicra has joined #Chemistry [09:51] * Jicra has quit IRC (Quit: Leaving) [09:52] * Jicra has joined #Chemistry [09:52] * kalldred has joined #Chemistry [09:53] * SparkleR has joined #Chemistry [09:53] * Jicra has quit IRC (Quit: Leaving) [09:53] * Jicra has joined #Chemistry [09:54] * Monica has joined #Chemistry [09:54] * jicra1 has joined #Chemistry [09:54] * jicra1 has quit IRC (Quit: Leaving) [09:55] * Frank has joined #Chemistry [09:55] * mikeh has joined #Chemistry [09:55] * SparkleR has quit IRC (Quit: Leaving) [09:55] * Jicra has quit IRC (Quit: Leaving) [09:55] * batkins1 has joined #Chemistry [09:55] * Jicra has joined #Chemistry [09:57] * JQuijano has joined #Chemistry [09:57] * JQuijano has quit IRC [09:57] * JQuijano has joined #Chemistry [09:58] * Shelley has joined #Chemistry [09:58] * Jicra1 has joined #Chemistry [09:58] * Jicra1 has quit IRC (Quit: Leaving) [09:59] * Jennyy has joined #Chemistry [09:59] * Jicra1 has joined #Chemistry [09:59] So what are we supposed to do? [09:59] i have no idea [09:59] good question lol [10:00] * DrSturm has joined #Chemistry [10:00] this is my first hybird class, ive never done one online [10:00] Me too! [10:00] ya same here [10:00] Yup! [10:00] same here [10:00] Me too [10:00] Hi All, we will wait about 10 minutes before we begin. [10:00] ok [10:00] alrighty [10:00] * Jicra1 has quit IRC (Quit: Leaving) [10:00] What do we need to have out? [10:01] ok [10:01] * KevinE has joined #Chemistry [10:01] are we going to have a lecture in here? [10:01] i have open the powerpoint that is online [10:01] * KevinE has quit IRC (Quit: Leaving) [10:02] * KevinE has joined #Chemistry [10:03] * Jicra1 has joined #Chemistry [10:03] * chellyma has joined #Chemistry [10:03] * Jicra has quit IRC (Quit: Leaving) [10:04] * chellyma has quit IRC (Quit: Leaving) [10:04] * Jicra has joined #Chemistry [10:04] * michele has joined #Chemistry [10:04] Hi Michele [10:04] * ebien has joined #Chemistry [10:05] hello [10:06] You will need to open a second browser window so that you have access to the web site, http://chemistry.gravitywaves.com [10:06] * Guest has joined #Chemistry [10:06] Done. [10:06] ready [10:06] ok [10:06] ok [10:06] ok [10:06] I will ask you to hold your questions and I will give openings for questions that way things will be less confusing [10:07] The first thing i would like you to do is read through the syllabus and course policies [10:08] * Jicra2 has joined #Chemistry [10:08] The plan on MW is to go through and high-light certain main points from the ppt slides [10:08] Please note that on the main web page you see the words "Chat log", following each of our on-line discussions I will post the transcript of what we did [10:09] This way you do not have to worry if you miss something as we move along [10:09] By tomorrow you will want to print the ppt slides as hand-outs six slides per page so that you always have them at hand [10:10] You need to have this weeks ppt slides printed and with you on-campus tomorrow [10:10] It is safe to go ahead and print the entire five weeks as they will not change [10:11] As you can see looking at the syllabus we will have an exam every Thursday covering three chapter, meaning we cover approximately one chapter per day [10:12] This is an intensive course and I highly recommend that you not be working full time or depending on your family situations even part time [10:12] The time we spend together will be minimal next to the time you will need to put in studying in order to succeed this summer [10:13] It is imperative that you go through the ppt presentations, read the text book, do all of the assigned homework and complete all of the work sheets [10:13] Notice there are work sheets for every topic (chapter) on the web site [10:14] also study guides that will help you focus for the exams [10:14] What will the exams look like? They will be very, very similar to the homework and to the work sheets [10:15] Answers for the homework problems are found in the study guide, answers to the work sheets will be posted in the glass box outside of my office, NSM D-323 [10:16] As of today we are all starting with 500 points and at the end of the five weeks I will add up your individual points, divide by 500 possible points, multiply by 100 and get a percentage [10:16] Letter gardes will based on those percentages [10:17] Again I emphasize that this course will be rather like learning a new language and will require many hours of study and practice to succeed [10:17] * Jicra3 has joined #Chemistry [10:17] Any body have questions on lecture syllabus or policies? [10:18] * Jicra2 has quit IRC (Ping timeout: 240 seconds) [10:18] I'll give you a couple of minutes to read things over [10:19] So we turn in our hw assignments every T and Th we meet? [10:19] No you don't turn in anything to me, it is all to help you prepare for the exams [10:19] Do you have posted office hours this summer or do we need to schedule in advance? [10:20] No office hours, we will see plenty of each other between these on-line sessions and on-campus lecture/lab [10:20] If you have specific questions that are not answered here or in class you can e-mail me: nsturm@csudh.edu [10:21] So homework and work sheets are a must.....also you can not fall behind as we are covering about a chapter per day [10:21] do you take role in these online sessions or is it just for our benefit? [10:21] as far as the model kit... do we need that right away? or will you talk about it later? [10:22] No I will not take role, it is definitely for your benefit, also remember I will post the transcipts so if your internet connection fails etc you won't miss anything [10:22] what are the "quick" thinks? is that only during actual class meetings? [10:23] You will need some molecular models but it is possible to share one kit between 2-3 people so you may want to go in with a friend on that [10:23] Where are the Model kits available? [10:23] I will do them both on-line and in class, they are bascially homework.work sheet like problems that i will throw out so you can test your comprehnsion as we go along [10:24] You should be able to get a model kit at the book store or on-line [10:24] The quick thinks will begin tomorrow in class and continue Wednesday on-line [10:25] Are you going to post practice tests? [10:25] i also noticed you posted that we needed to complete the worsheets with our groups. Will we have specific groups or is that optional? [10:25] I need to say a few things about the lab as most of you are taking both lecture and lab [10:26] I do not say anything about groups? Where do you see that? [10:26] The ppt slides [10:27] the sixth one [10:27] under the first clickable ling under topics. There is a slide with a list of thinks to do to be successful in the course [10:27] its under number 4) [10:27] When reading the chapters should we just focus on what we go over in lecture? [10:28] Ah, no we will not do groups per say this summer [10:28] oh ok [10:29] Yes, the focus will come from the ppt presentations and the study guides which should help narrow down exactly what you will need to know [10:29] So for the lab.... [10:29] You will need to print the experimental procedures before coming to the lab [10:30] We actaully have a student computer lab that will be open every T/Th in NSM D-331 [10:30] * Frank has quit IRC (Ping timeout: 240 seconds) [10:30] Notice that we dive right in tomorrow with two labs, Simple and fractional distillation, so make you you bring those procedures with you [10:31] Can we print in that computer lab? [10:31] Also you must wear closed toe shoes to the lab, no sandals of any kind, also if you have a lab coat bring it otherwise we will have lab coats that you can use [10:32] Yes you can print in NSM D-331 [10:32] We will meet for the pre-lab discussion every T/Th at 1:00PM next door to the Organic lab in NSM C-339 [10:32] * beejelous has joined #Chemistry [10:33] We will go over the policies, grading etc in detail tomorrow but remember you will need the printed procedures and proper shoes in order to work in the lab [10:34] Any more questions yet? [10:34] are lab coats strongly recommended? [10:34] do we need googles for lab? [10:34] will we need lab goggles? [10:34] You must wear one that is why we have them available if you do not have one [10:35] We have goggles for you [10:35] when we turn in our lab worsheets the next meeting after we actually do the lab, do we write on the .doc file provided by you or make a typed report? [10:35] You will just fill out the lab report sheets found on the web site and answer any exercise questions, also found on the web site [10:36] Reports will not be a big formal, typed deal [10:36] We are trying to keep the lab rather simple as you will have enough to keep up with in the lecture [10:36] so do we still need lab note books? [10:37] The labs themselves will be time consuming as we will be physically present in the lab every T/Th 1:00 until about 4-5PM [10:37] * Ugo has joined #Chemistry [10:37] You will need some kind of lab notebook to keep you dtat in, but the notebooks will not be collected or graded [10:38] to keep your data in.. [10:38] * kuzomah has joined #Chemistry [10:38] Do you have a preference as to which lab notebook to use? [10:38] No, you can use the same one you used for your General chemistry lab [10:38] do the lab books have to be a specific color? [10:39] No [10:39] What is the practicum? [10:40] O.K., I'm going to give you another couple of minutes to think about questions then high light a few things from todays ppt presentation [10:40] The practicum is a lab test, we will talk more about that in the lab tomorrow, nothing to worry about at this point [10:40] ok [10:41] Remembr you must bring printed copies of the slides, i suggest printing them as hand-outs, six per page with you tomorrow [10:41] * Frank has joined #Chemistry [10:42] You will definietly need "Openr/Review", "Methane" and "Alkanes" [10:42] Again it is fine to go ahead and do all of your printing and make some kind of notebook to carry with you, same idea for the lab [10:43] So the lecture notes for today should pretty much be a review as we assume you have all had general chemistry [10:44] * beejelous has quit IRC (Quit: Leaving) [10:44] We will actaully begin our study of "Organic Chemistry" tomorrow [10:44] The main thing for today is to become familiar with the periodic table once again. [10:45] Also to review the concept of bonding, both ionic and covalent, though after this week we will be talking strcitly about covalent bonds [10:46] Also in terms of the periodic table our main focus will be on C, N, O and H [10:47] * kuzomah has quit IRC (Quit: Leaving) [10:47] Please review the concept of electronegativity, i.e. when two atoms of very different elctronegativities come togtehr they form a "polar" bond [10:47] * Koko has joined #Chemistry [10:48] Remember that the group number for a given atom (the number at the top of the column on the periodic table) tells us how many valence electrons that atom has, ie how many electrons available for bonding. [10:50] With this information you shopuld be able to draw simple lewis dot structures, ie :N:::N:, so Nitrogen goupr five, five valence elctrons, 10 total for two "N" [10:50] * JQuijano has quit IRC (Quit: Leaving) [10:50] * JQuijano has joined #Chemistry [10:50] Also note the octet rule, each atom likes to be surrounded by 8 electrons [10:52] Become familiar with the VSEPR chart, ie the shapes of molecules, you do not need to memroize the chart as it will be provided during Exam 1 [10:53] With the VSEPR table E= lone pairs, X= atoms bound to the central atom and A= central atom [10:53] Dr. Sturm would it be wrong to present the N2 as :n-n: (obviously with two of the dashs) [10:53] Ie can we draw our covalent bonds as dashes [10:53] I would also like you to be familiar with the concept of formal charge, a way to calculate the chanrge on a given atom [10:54] Formal charge allows us to keep track of electrons when drawing lewis dot structures [10:55] The formal chanrge can be calculated, Formal Charge= Group# - Nonbonding electrons - 1/2 shared electrons [10:55] i.e. for the "C" in methane, CH$ we have 4 -0 - 1/2 (8) = 0 [10:56] Using dashes if you are asked to specifically draw a Lewis dot structures would not be correct [10:56] I think i know, but just so im clear, the DOT structures are the same as drawing the lines just 2 dots for each electron right? [10:56] We will use a dash to represent the sharing of two electrons in a covalent bond for the remainder of the course [10:57] Yes, that is correct, two dots for each dash or line [10:57] Yes [10:58] Remember that ectronegatvity increase as you move from left to right across the periodic table, i.e. the halogens are quite electronegative when compared with Na or Li [10:58] ok thanks [10:59] The final concept you want to review is acids and bases, in particular, i want you to use the Lewis acid/base definitions [10:59] A Lewis acid is an "elctrophile, of lover of electrons [10:59] A lewsi base is a "nucleophile" or lover of nuclei [11:00] We will be talking quite a bit about electrophiles and nucleophiles [11:01] I will put a number of "Qick Thinks" on the board first thing tomorrow so that you can see where you stand in terms of this review material [11:01] um, we've never used those terms at my school but do they have to do with the substances that accept or donate elctrons? [11:01] Also make sure you understand everything in the homeowrk for Ch 1 and the work sheet [11:02] Yes a lewis acid is a substance that accepts an electron pair, a lewis acid is a substance that donates an electron apri [11:03] Sorry lewis base, donates the electron pair [11:05] There is one thing that I would like you to remember that will serve you well for the remainder of these courses, that is: carbon always has four bonds, nitrogen three (with one lone pair), oxygen two (with two lone pairs) and hydrogen one [11:06] We will begin drawing structures tomorrow and if you always have this in mind you will be able to check your organic structures to see if they make sense [11:07] i.e. if you have a carbon with five or three bonds to it something is not right, same for hydrogen, an H with two bonds to it is not going to be correct [11:07] Believe me this will help you as the structures and reactions will start coming quite quickly in the next several days [11:09] this is done for today's lecture note? [11:09] Again using the Study Guide for Exam 1: Understand the periodic table, ionic vs covalent bonds, polarity, lewis dot structures, shapes of atomic orbitals (at elast "s" and "p"), VSEPR theory, lewis acid/base theory/ [11:10] * KevinE has quit IRC (Quit: Leaving) [11:11] Also notice that the work sheet and homework pretty much follow these concepts with that addition of a formal charge calculation and a quick look at the acid/base reactions always run "down hill" concept [11:11] So any questions so far? about anything? [11:11] * KevinE has joined #Chemistry [11:12] If you normally wear sandals bring closed toe shoes for the lab, you can even leave a pair in you lab locker for the five weeks [11:13] I'll stay in the chat room for about the next 15 minutes in case there are more questions [11:13] remember you can also e-mail me [11:13] Are each student assigned a locker, and do we need a lock? [11:13] * marygrac has quit IRC (Read error: Connection reset by peer) [11:13] Will post the Chat log around 11:30AM [11:14] You will each be assigned a locker with a lock [11:14] * Guest has quit IRC (Quit: Leaving) [11:14] Other wise if you feel good to go I'll see you on-campus 10:00AM tomorrow, NSM C-221 [11:14] so do we need to bring our texts to every class (including lab)? [11:15] You should have the text in the lecture [11:15] * marygrace has joined #Chemistry [11:15] do we need to bring the study guide also? [11:16] Can we see practice tests? [11:16] Always good to have it with you [11:16] Or old exams anywhere? [11:16] There are no practice tests available but i assure you the test questions will be very similar to the homework, work sheets and Quick Thinks [11:17] * Shelley has quit IRC (Quit: Leaving) [11:17] Do we have to know isomers? [11:18] * Ugo has quit IRC (Quit: Leaving) [11:18] Yes, we will talk a lot about isomers [11:19] Do you suggest reading the chapter before lecture or after lecture? [11:19] * Frank has quit IRC (Quit: Leaving) [11:19] * kalldred has quit IRC (Quit: Leaving) [11:20] I suggest reading through the ppt presentation before the class meetings, text you can do either before or after [11:20] * marygrace has quit IRC (Quit: Leaving) [11:21] * marygrace has joined #Chemistry [11:23] * KevinE has quit IRC (Quit: Leaving) [11:24] * JQuijano has quit IRC (Quit: Leaving) [11:24] * mikeh has quit IRC (Quit: Leaving) [11:24] * batkins1 has quit IRC (Quit: Leaving) [11:25] * Jicra1 has quit IRC (Quit: Leaving) [11:25] * Koko has quit IRC (Quit: Leaving) [11:26] * ebien has quit IRC (Quit: Leaving) [11:27] * KevinE has joined #Chemistry [11:29] * DrSturm has quit IRC [11:29] * Disconnected Session Close: Mon Jun 01 11:29:36 2009