Search found 18 matches

by Scow
Fri May 30, 2014 7:28 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1337: "Hack"
Replies: 65
Views: 36014

Re: 1337: "Hack"

by Scow
Mon Oct 15, 2012 4:30 pm UTC
Forum: Science
Topic: Have you ever worked with hydrofluoric acid?
Replies: 30
Views: 13158

Re: Have you ever worked with hydrofluoric acid?

A bottle of HF is sitting in the hood behind me right now and that stuff gives me the willies. *shudder* I won't speak for everyone but it seems that most people who work with the stuff have a great respect for it. Besides the tendency for fluorination reactions to form explosive mixtures, there is ...
by Scow
Wed Aug 15, 2012 3:23 pm UTC
Forum: Science
Topic: Important Scientific Papers
Replies: 17
Views: 7010

Re: Important Scientific Papers

I agree with other the other posters that this question depends on your field of interest. It should also be noted that some of the best science wasn't discovered "over night" and, therefore, publications span many years, journals, and articles. Understanding the beautiful nuance may requi...
by Scow
Tue Jul 17, 2012 9:03 pm UTC
Forum: Science
Topic: Identifying a compound with 1H NMR (homework)
Replies: 6
Views: 2620

Re: Identifying a compound with 1H NMR (homework)

The 4 elements of unsaturation and the 3 signals that integrate to 5 H all around 7ppm are consistent with a monosubstituted benzene ring. Remember that long range coupling in pi conguated systems makes the actual splitting difficult to predict. Also, there are very few things that could show up in ...
by Scow
Tue Jul 17, 2012 6:04 pm UTC
Forum: Science
Topic: Identifying a compound with 1H NMR (homework)
Replies: 6
Views: 2620

Re: Identifying a compound with 1H NMR (homework)

The elements of unsaturation are a bit hint too. Perhaps isobutyl phenyl ketone?
by Scow
Thu Jun 07, 2012 4:35 pm UTC
Forum: Science
Topic: Help with Organic Chemistry
Replies: 11
Views: 5268

Re: (Org. Chem. Homework) Determining SN1 vs. SN2 reaction.

First, how would you change cyclohexane to cyclohexene? Radical bromination followed by treatment with a bulky alkoxide to facilitate E2 to get the alkene product. It isn't the most selective reaction in the world but it works. Secondly, the IUPAC name for this? I must be missing something because ...
by Scow
Mon Jun 04, 2012 5:26 pm UTC
Forum: Science
Topic: Help with Organic Chemistry
Replies: 11
Views: 5268

Re: (Org. Chem. Homework) Determining SN1 vs. SN2 reaction.

In regards to the question posed by the O.P., "by what mechanism does 'this thing' react with sodium methoxide?" Was this a problem out of a text book where they only give you SN1 and SN2 as possible answers? If so, the answer is SN2 for the same reason the other posts discussed. That asid...
by Scow
Mon Apr 02, 2012 6:14 pm UTC
Forum: General
Topic: National Parks
Replies: 19
Views: 4742

Re: National Parks

Does anyone have any other day hikes I should take that offer great photography opportunities? Yes. I happen to know a few good day hikes. If you are checking out Bear Lake and Dream Lake, make a day out of it and go for Black Lake. Take the trail out of glacier gorge trailhead (the one just below ...
by Scow
Tue Mar 27, 2012 4:48 am UTC
Forum: General
Topic: National Parks
Replies: 19
Views: 4742

Re: National Parks

Rocky Mountain National Park is always worth another visit. I've been hiking in that park every season for the past 4 years and I can't get enough of it. Also, the snowpack is very thin right now. It should be a killer year for early season hiking at high elevation without snowshoes or alpine equipm...
by Scow
Tue Mar 27, 2012 2:33 am UTC
Forum: School
Topic: What Pathway Should I Take to Biochemistry?
Replies: 3
Views: 2925

Re: What Pathway Should I Take to Biochemistry?

There are plenty of jobs in biochemistry if you have a strong traditional chemistry background to back it up. I did drug metabolism work for a pharmaceutical research company before going back to graduate school. They often had a hard time finding chemists and biochemists. They would end up taking b...
by Scow
Fri Mar 23, 2012 4:10 pm UTC
Forum: Science
Topic: Worst thing you've seen in a lab
Replies: 256
Views: 233260

Re: Worst thing you've seen in a lab

Bloody hell. What sort of lab synthesis requires a cylinder of N 2 O 4 ? Usually the only time you ever see a large cylinder of N 2 O 4 is when you're loading it into something like this (note the appropriate PPE): http://spacespin.org/article.php/venus_express_launch_preparations We are not a synt...
by Scow
Wed Mar 21, 2012 7:03 pm UTC
Forum: Science
Topic: Worst thing you've seen in a lab
Replies: 256
Views: 233260

Re: Worst thing you've seen in a lab

Nasty stuff? Ask and you shall receive. I submit this story for your consideration. About 6 months ago, one of the new graduate students in my research group was working with a cylinder of N 2 O 4 . He called me in a panic because he released a bunch of it in the lab. Apparently, N 2 O 4 had condens...
by Scow
Wed Mar 21, 2012 12:59 am UTC
Forum: School
Topic: Humorous Academic Papers
Replies: 15
Views: 6003

Re: Humorous Academic Papers

E.L. Hanson, J. Schwartz, B. Nickel, N. Koch, M.F. Danisman, J. Am. Chem. Soc. 125 (2003) 16074–16080. The paper descibes self assembled monolayer formation through "tethering by aggregation and growth." Natrually they use the acronym to refer to this process in the paper, e.g. T-BAG. I gu...
by Scow
Thu Mar 01, 2012 3:01 am UTC
Forum: Science
Topic: Chemical Bonds - book suggestion?
Replies: 13
Views: 2300

Re: Chemical Bonds - book suggestion?

One of the best books I've seen on this subject is: Chemical Structure and Bonding by Roger L. DeKock and Harry B. Gray I picked this book up a few years ago to use as a reference for a graduate level inorganic synthesis class. It does a great job at developing atomic theory and bonding from the bas...
by Scow
Tue Dec 06, 2011 9:50 pm UTC
Forum: Science
Topic: What textbooks would you recommend in the following courses?
Replies: 42
Views: 7335

Re: What textbooks would you recommend in the following cour

Polymeric Materials I took a 1st year grad class on this a few years ago. The texts required for that were: Sperling, Introduction to Physical Polymer Science Painter and Coleman, Fundamentals of Polymer Science Both books cover polymer materials with an emphasis on polymer analysis/characterizatio...
by Scow
Mon Nov 21, 2011 5:14 pm UTC
Forum: Science
Topic: 2 "point" 4 dimethyl valeronitrile - why no comma?
Replies: 4
Views: 1559

Re: 2 "point" 4 dimethyl valeronitrile - why no comma?

It's not even consistently used. Maybe it's one o' them odd holdovers from pre-IUPAC. It would have to be a very old holdover. For those who care, see: W. C. Fernelius , Kurt Loening and Roy M. Adams J. Chem. Educ. , 1972 , 49 (5), 333. Seems to be a mistake perpetuated through liturature and the w...
by Scow
Wed Jun 22, 2011 11:07 pm UTC
Forum: School
Topic: Working for a department head as a Ph.D. student?
Replies: 5
Views: 2387

Re: Working for a department head as a Ph.D. student?

I am currently working on my Ph.D. in chemistry with an advisor who is also department chair. It has been nothing short of a nightmare. I joined the research group when my advisor was interviewing to become the chair so I thought I knew what I was getting into. As the other posters have stated, if y...
by Scow
Thu Nov 18, 2010 3:36 am UTC
Forum: School
Topic: Applying Grad School in Chemistry
Replies: 1
Views: 1097

Re: Applying Grad School in Chemistry

Hi Blackrose, I'm currently working on my Ph.D. in analytical and materials chemistry at Colorado State University so I'll try to speak to applying to chemistry graduate programs. Admissions cut-offs at most schools are lower than most people think. Your GPA and scores seem high enough to get into m...

Go to advanced search