Saturday, January 15, 2011

Organic Chemistry Study Help

Ah...Organic Chemistry! I finished the first semester of organic chemistry, and am gearing up for round 2 (second semester, not second try at Organic 1, thank goodness!). Organic wasn't as scary as I've heard it described, but, I did have "the fear" going into the course, so I also knew to heed the warnings of students past, and not get behind in studying the material.

The biggest piece of advice I can offer is that you need to really UNDERSTAND the concepts...why does a reaction happen the way it does? What are the rules of attraction for electrons? If you understand these, the reactions come together all by themselves.

I have used several internet sites as study materials, and will list all of those below. While I did not have this particular professor at University of Texas, Professor Iverson was one of the authors of the textbook that we used, and this guy has consistently been rated by his students as being the most awesome professor they've ever had, despite the fact that he teaches one of the most hated subjects in all of academia. The reason why they like him so much is because he is great at teaching a very notoriously difficult subject. Students come away from the class feeling like they understand the material and aren't doing a ton of rote memorization. They all say that they still have to do hard work, but that he teaches in a way that they don't feel like they've been thrown into the deep end of the pool without water wings! So...the biggest resource for studying was Professor Iverson's website for Organic Chemistry 1 (CH310M at University of Texas).

Professor Iverson's Web Page:


Some of the most helpful documents on Professor Iverson's site are his old example tests, homework assignments, and practice reaction sheets. Also, one of the things that was stressed in our classes was being able to construct a "roadmap" of reactions...knowing how to convert a molecule to any other molecule that we studied though various reaction types. Here is a template of one that we used in our classes...it's setup like a literal roadmap of the I-35 corridor in Texas since that's something most of us in Texas are familiar with, and the names of cities that are included provide some cues to help remember the structure. It's only partially filled in.


Some other example roadmaps that I found online with all of the reactions filled in look like this:



IUPAC Nomenclature is one of the most basic elements to Organic Chemistry. You have to be able to know how to identify and construct molecules. Luckily, the convention for naming molecules is pretty systematic. Of course, it requires practice to get the hang of it, but once you've got that down, it starts to become second nature.

Some good sites are:

This one has everything, but it is more technical in nature:

I like this one because I think it's really great for beginners who are just getting into Organic molecules:

This is a pretty awesome little molecule naming application. You draw out your molecule in the java applet, and then the site will take the molecule you have drawn and generate the appropriate IUPAC name. Pretty nice for checking your answers. I'd stress, though, that you want to use this to check your answers after you've given your best shot at doing the work first. Practice is the most important element to doing well in this class.


So...that's some good info to get you started! Understand all of these things, and you are well on your way to doing well in organic chemistry!

Tuesday, August 31, 2010

Things are about to get a little crazy…

That’s because I’m taking Organic Chemistry this semester. 

I haven’t updated in quite some time, and that’s because I’ve had my head down and studying LIKE A MADWOMAN for the past 8 months.  I finished General Chemistry 1 and 2, Cellular and Molecular Biology, Genetics, US History 2 (I know…huh??), and even a bit of calculus.  But, even that will pale in comparison to the mother of all science classes…the dreaded O-Chem.  I had to enroll at UT (aw…shucks! \m/ ) this semester because ACC did not have an evening class available.  And WHAT A DEAL this is turning out to be.  My professor is a newly-minted PhD, but has taught the class several times over as a grad student, she runs the same type of course outline as the professor who wrote our text…who also teaches at UT and has a huge website of information available, and there are a total of 16 of us in the class…as opposed to the section she teaches during the day with…wait for it…400 STUDENTS!!  WOW!! Did I mention that I’ve read more positive reviews about organic chemistry classes that this UT professor teaches than I’ve EVER READ?  I don’t think I’ve ever heard anyone actually say they liked it.  Not the case here, apparently!  What a relief!!

I feel like I’ve really lucked out over the last few semesters, both at ACC and now at UT.  I’ve had some really outstanding professors who are able to devote a lot of time to smaller groups of students, and I’ve probably learned more than a lot of the kids in the 400 student classes.  Not to say that it’s not possible to learn the material in a class with that many other students, but I’ve been there before, and it’s so much easier to have a meaningful discussion about course material when you aren’t scared to death of embarrassing yourself in front of 400 of your closest friends.  For that matter, it’s so much easier to have a discussion when your professor can actually spot you in the classroom when you are raising your hand and you’re not in a sea of faces. 

Two of my classes (Cellular and Molecular Biology, and now, Organic Chemistry) were / are taught by UT faculty who were/are teaching the SAME EXACT MATERIAL to me that they were / are teaching to their mega-sections.  With the Cell Bio class, the professor has consistently been voted Professor of the Year by UT students…even when they WERE in the 400 student classes.  And I had him at ACC (he enjoys teaching so much, he picks up a weekend bio class there to help out the school), paid a 1/3 of the price, and got to pick his brain until I couldn’t think of anything else to ask him!  Awesome!!  And, another excellent class that I just loved at ACC was my Anatomy Class, which I took last fall.  That was my first biology class in 15 years (and I had been in the mega-section classes back then), and I just kept thinking to myself, “where has this class BEEN all my life?!??”  This was one where I had an online professor who was very dedicated to helping us any way that she could, was very responsive to questions and email, and despite the lecture portion of the class being distance, it was easy to see that she had a passion for the subject matter, and also, seeing her students do well.  Our lab was just as awesome.  We had a second professor who taught that lab, who actually went to med school prior to becoming a college professor.  Boy, did I have fun with her!!  She was such a great resource of information on everything from anatomy to medical school admissions.  There were several times where she stayed more than an hour after our class period was over (and this was already a 4 hour class!!), and would answer anything I could think of…”How did you study for the MCAT?” “What are my chances of acceptance?” “What was the best thing about medical school?” “How do the nerves reconnect to a transplanted artery after coronary bypass surgery?” “Let’s talk about epipheseal plates…” “Did you hear that the guy whose life is the basis for the character in ‘Rain Man’  had no corpus callosum, and they think that could be why he could remember everything that he did?!??”  Yep…this is how my brain works and what I think about, and no matter what I threw at her, she was more than willing to answer my questions as best she could.

So…it has been a little crazy.  And it IS going to get a little more crazy with Organic Chemistry.  But, I feel like I’ve got all the tools and support in place due to great professors. I’ll do well well in the class as long as I put in the effort.  I’m not sure if I’ll be able to post much this semester, but if something interesting comes up, and I come up for air from my textbooks long enough to write a quick note about it, I definitely will.  :)

Until then…  ;)

Wednesday, February 3, 2010

CHEM 1311

 

Alrighty…  Time to dive right in with some awesome websites that will help with information on the first two chapters we will be tested on…

First, a few really great online calculators to help check your homework when converting back and forth between different units of measure in the decimal system.  I recommend just using these to check your answers so that you are working the problems the correct way…after all, we won’t have these for help on the exams…  :(

http://www.worldwidemetric.com/metcal.htm

http://www.unit-conversion.info/metric.html

 

Next, I’ve got an EXCELLENT site on converting to numbers to Scientific Notation.  This site explains the rules for addition/subtraction and multiplication and division, AND (this is the best part!) offers an interactive quiz for you to practice.  30 minutes with this site, and you’re golden.

http://janus.astro.umd.edu/astro/scinote/help.html

And…the moment you’ve all been waiting for…a calculator to check your answers for Polyatomic Nomenclature conversions!!!  YES!!  Courtesy of UNC – Chapel Hill, you can put together all kinds of combinations.  Plus, there’s a plethora of other great chemistry information and tutorials here.  Basically a JACKPOT!!  :)

http://www.shodor.org/unchem/basic/nomen/polycalc.html

 

Between these 4 sites, I think just about everything we could possibly be asked on the exam is covered in some form or another.  But, later this week, I’ll post all my notes that I’ve taken from the book on Chapters 1 and 2.  Look for those probably sometime on Saturday.

 

Happy Studying!

-L

Monday, January 18, 2010

Officially Changed My Major…I’ve Become Good At That Over The Years

 

Classes start the day after tomorrow…although since it’s 2:15 am right now, I guess I can say that they start tomorrow, instead.  And, in true “LB” fashion, I officially changed my major tonight.  Not that it’s really different from what I had discussed with anyone last semester…  I started off by declaring a Nursing major.  But, I decided midway through the Anatomy class that I wanted to go completely crazy (yes, I need to have my head examined!) and apply to Medical School.  And, tonight, I found out the Austin Community College offers a Pre-Medical Associate Degree.  It has all the classes I need as prerequisites to apply to medical school, plus a few extra liberal arts electives that I would need to fulfill if I decided to pull the plug on spending the rest of my life in medical school and get my BSN at University of Texas, instead.  And, I figure, hey…if I’m doing all this work, anyway, shouldn’t I get some kind of a nice diploma out of the deal?  I say, “YES!”  :)  Anyway, I’ve got several of the electives finished, and anything that is not directly related to the medical school requirements, I will wait until after I’ve taken the MCAT and applied to schools to complete.  As I was thinking about it before, I realized that I would be sitting around doing absolutely nothing for about a year once I complete the hardcore prerequisites, anyway, so the extra classes will give me something to do while I wait to find out if anyone will take me (PLEASE!  SOMEONE TAKE ME!!), and will also get me prepared to transfer into UT if they decide not to take me.  Either way, I think it’s a good, solid plan, and I feel very at peace with it.

So…on-tap for this semester is my heaviest course load yet.  I’m taking 11 hours while working full time (yes…I’m on crack).  The good news is that the text for my Cellular and Molecular Biology class is the same one that we used for AP Biology when I was in high school…only this sucker is 5 editions NEWER!!  Wow…I feel very old.  Anyway, my point, here, is that the material will be more of a review, so I’m very glad for that.  I’m also taking General Chemistry 1.  I took this class at University of Colorado, but it was about 15 years ago, and I barely remember a thing.  So…this will be review as well.  AWESOME!  And, finally, there will be US History II.  This is one of those elective classes that will be required for the UT BSN as well as the Pre-Med AD.  And because I’m taking mostly review stuff this semester, I figured it would be a good time to max out my course load…  I take that back…  I don’t think any time is a “good” time to max out my course load, but if it has to be done, this would be the time for it.  After this semester, there really won’t be any more “eeek” room until after I take the MCAT and start applying to schools at the end of NEXT Spring semester. 

Anyway, here’s wishing everyone a great semester with good professors and easy tests!!  A girl can dream, right?!???  ;)

Friday, December 11, 2009

It’s the moment of Truth…

Last night for studying, kids…  One last practical to take, and this semester is in the books.  I think I probably need a 30 out of 40 to keep an A in the class.  This is a guess, though, since I don’t know what I got on the last exam.  I don’t think the last exam was as air-tight as I’ve been on previous ones…  I wrote 11 pages for the essays, and that wasn’t counting the extra credit diagram.  But, I kept thinking of things I could have added once I left.  Of course, after literally THREE HOURS of non-stop writing, I HAD TO finish.  I really needed to go to the “little girls’ room” at the end of hour 2, but since I was nowhere near finished and they won’t let you leave, I had to stick it out for as long as all those little sphincters would let me (haha…I’m hilarious…or just sharing TMI…but it’s true, and THAT, my friends, is EXAM MATERIAL you can take to the bank!!).

Anyway, good luck to everyone with your studying tonight.  I think that my last post had a link to just about everything, and if not, it was pretty darn close.  It’s been a GREAT semester, and despite all the long nights and stress from cramming all this good information into my head, I really enjoyed it and had fun meeting all of you!  I will be keeping this blog around for my future classes since it seems to have been a pretty decent study tool.  So…if we have more classes together, keep this page bookmarked!  And if we don’t have more classes together and you just want to see me get my mind MELDED when I take O-Chem in the fall, stick around for that, too!  It’s going to be GOOD TIMES!!  Next up, though: Cellular Biology and General Chemistry 1.  I had chem 1 and some cell bio in college, but good lord, that was almost 15 years ago that I took those classes, and I can barely remember a darn thing!!  (I can’t believe I just put that number in PRINT!) 

So, good luck in your future studies, and hopefully, I’ll be seein’ ya somewhere again in the future!!  :)

-L

Thursday, December 10, 2009

A Little Help For the Last Practical! WoooHooo!! :)

Found a great website thanks to my alma mater... Wish I'd found this earlier in the year... It's actually pretty good. This will give you a set of links to models for the urinary system and the reproductive system (male and female):

Go Buffs!
http://www.colorado.edu/intphys/iphy3415/models/

Histology:
http://www.kumc.edu/instruction/medicine/anatomy/histoweb/

Digestive Lab

Digestive Models:
http://nhscience.lonestar.edu/bioL/ap2model/digestive.htm


Digestive Slides:

Salivary Glands:
http://nhscience.lonestar.edu/bioL/digestive/salivary.htm
http://www.austincc.edu/histologyhelp/organs/op_salivary.html

Esophagus Slides:
http://nhscience.lonestar.edu/bioL/digestive/esophagu.htm
http://www.austincc.edu/histologyhelp/organs/oq_esophagus.html

Stomach Slides:
http://nhscience.lonestar.edu/bioL/digestive/stomach2.htm
http://nhscience.lonestar.edu/bioL/digestive/stomach.htm
http://www.austincc.edu/histologyhelp/organs/or_stomach.html

Small Intestine:

Duodenum : http://nhscience.lonestar.edu/bioL/digestive/smintest.htm
Duodenum: http://www.austincc.edu/histologyhelp/organs/os_duodenum.html
Jujunum: http://nhscience.lonestar.edu/bioL/digestive/jejunum.htm
Ilium: http://nhscience.lonestar.edu/bioL/digestive/ileum.htm
Ilium: http://www.austincc.edu/histologyhelp/organs/ot_ileum.html

Pancreas: http://district.bluegrass.kctcs.edu/shirley.whitescarver/BIO139Lab/BIO139/139Lab12/Lab12EndocrineSlides.html (scroll to the bottom of the page)

Liver:
http://www.austincc.edu/histologyhelp/organs/ov_liver.html
http://www.kumc.edu/instruction/medicine/anatomy/histoweb/gitract/gitract.htm



Urinary System Lab:

Kidney: http://www.austincc.edu/histologyhelp/organs/ow_kidney.html
Kidney - Nephron: http://nhscience.lonestar.edu/bioL/urinary/nephron.htm

Bladder Slides:
http://nhscience.lonestar.edu/bioL/urinary/bladder3.htm
http://nhscience.lonestar.edu/bioL/urinary/bladder.htm

Kideny Model:
http://www.colorado.edu/intphys/iphy3415/models/kidney.html

Reproductive Systems Lab:

Testis Slide: http://www.austincc.edu/histologyhelp/organs/oy_testis.html
Penis Crossection: http://nhscience.lonestar.edu/bioL/reproductive/penis.htm


Male Reproductive Models:
http://www.colorado.edu/intphys/iphy3415/models/repro_male.html
http://www.colorado.edu/intphys/iphy3415/models/male_2005.html

Female Reproductive Models:
http://www.colorado.edu/intphys/iphy3415/models/repro_female.html
http://www.colorado.edu/intphys/iphy3415/models/female_2005.html