Organic Chemistry

O ll / \ l l \_ // O ll / \ ll l \ __ / Ok, this is the hexane molecule with the C=O bond on the top. In the first one, there is a double bond near the lower right and a double bond in the second molecule at the middle left. I'm wondering, as far as isomerism is concerned, is this a cis-trans isomer or a structural isomer and why. On my test i put structural, so i dont know if i'm right. Thanks in advance.

I'm kind of new here and not the greatest biologist (i think this applies in this forum) and was wondering if users could possibly help me out with something that has been baffling me. The other day my biology teacher for my Grade 12 Academic class showed us a little experiment involving homogenized milk, food colouring, and detergent. I'm aware that the milk is mostly comprised of water and contains some fats, that food colouring is water soluble, and that the detergent is an emulsfying agent (not quite sure what emulsion is), but that is were my knowledge ends. The experiment went like this: We took a petri dish and half filled it with the homogenized milk and let i…

Looking at the geography of napthalene, it looks like 2 benzene rings with a commonality, is there a way to cleave these appart and fill in the missing bond to make 2 benzene from one napathalene or 1 benzene and say a Hexane type?

Is there any truth to the statement that some fumes from organic solvents can react with contact lenses causing them to fuse to the eyes? If so, then what are these solvents?

...in another context. I'm going to be making a discussion about how organic chemistry is not used as much in the medical field. Dont take me too seriously, this is just for a fun debate. I understand a few concepts of basic organic chemistry may be crucial, but anything beyond that is not necessary. This topic is solely on the subject itself, NOT on how med schools require and take into consideration how well students do in organic chemistry. I believe that the understanding more complex reactions taught in an organic chemistry course isnt applicable in the field of medicine. I find it more pratical in other fields, such as industrial chemistry. No doubt that they h…

I've isolated some DNA in ethanol(70% Solution) from Split Pees is there a way to separate ß-2-Deoxy-D-ribose, Thymine, Adenine, Guanine, Cytosine, TMP, AMP, GMP, or CMP.

Wool Dying No I havent finaly lost my mind, I`m doing this for my dear old Mother, she`s into carding and spinning wool and making things, and since she knows I have plenty of chems, she asked me to synth a few dyes, she`s 60 the end of this year and Finaly Trusts me with chems (I`m 40 next year!) yeah it took a long a time! so anyway, I have 15 different colors already but need to concentrate more on Reds, Purples/Violets, a few more Blues and some grey shades. thus far all reactions have been Water based and I`m still open to more! and also Cold water too. denatured alc (methylated spririts) I haven`t tried yet, so fire away. I`m basicly a…

i Heard a fact : vapourisation of graphite give rise to Fullerene !?!?! IS it true ???

Okey this is my thought. I have an espresso machine. On the side there is a thing you open once in a while to empty which contain solid compact powder of coffe residue. People have also used this to put in the earth together with plants to kill bugs, so appaerently it has caffeine. Compared to the caffeine transferred to the cup, does anybody know roughly how much caffeine it conatins? Im thinking of either mix it with HCl to make caffeine.hcl salt or just subliming it in order to extract caffeine, will these methods work with the amount of caffeine present in the coffe residue?

Would anyone know if there is a formula to calculate the variation of Boiling Point (BP)of aqueous organic liquids (azeotropes) with respect to Pressure ? Need to know the BP of Ethanol 96% at various pressures.

What are the best home grown options for biodeisel? Currently I buy from the local station which offers 20% biodiesel made from soy beans....just curious if there is a more viable option. I've read that used veggie oil can be converted for around 40 cent/gallon but I'm curious as to why it hasn't been looked into further; Is it due to the glycerin byproducts? Exactly what does happen to used veggie oi anyways:confused: If kudzu could be converted into biodiesel...the south would rise again! From what I understand, the poop grows 6" per day during the warm season.

Hello. I recently purchased a couple of plastic water jugs but discovered that the inside had a very powerful and distasteful odour, as do many plastic products. I was advised to fill both jugs with bicarbonate of soda and leave them standing for a few hours. I did this and found that the odour had gone completely! Can anyone explain this? Thanks

Does anyone have any ideas for a starter in organic chemistry for a group of 17 year olds? Something fun and interesting that could act as a "hook" into the subject?

Is it possible for this compound to exist? If so what would its name be? I don't know, looks like it should be - it is substitution to the benzene ring but its been bugging the hell out of me for a few days since the chemistry exam... Just another curiosity -- Ryan Jones

If you could just take all the energy from an average human being, would you be able to power a 40 watt lightbulb with it? If so, for how long? Can anybody give me a good idea of the comparable amount of energy in a human being?

I'm obviously missing something, but I've been studying polymers and monomers recently, and the dissasociation of a carboxylic acid in water(carbon, double oxygen bond...and a hydroxide) produces hydrogen ions, and when bonded to an alcohol it condensates and produces water as a by-product. Why does the bonding of the hydroxide in carboxylic acid, behave like an acid ? I'm sure I'm gonna kick myself when I get the answer.

Hi guys, As we all know, in the Volhard's test, nitrobenzene and nitric acid are added. the purpose for nitrobenzene is to coagulate the precipitate. Anybody knows the mechanism behind it? And also, what the reason for adding nitric acid?

Good day all, I am trying to extract hte essence of some herbs I grow possible working on a system to automate this too. I am having trouble tracking down some 95% pure non de-natured ethanol within the UK, any help would be most appreciated.

Dear All, Will the following polyhydric alcohols undergo any reaction or be affected by the presence of 10% H2SO4 at 80 degrees Centigrade ? My main concern is if dehydration / elimination takes place leading to the formation of an Alkene. A ) CH2OH . C(CH3)OH . CHOH . CH2OH B ) CH2OH . C(CH3)OH . CH2 . CH2 . CH2 . CH(CH3) . CHOH . CH2OH [ I thought of carrying out the above reaction and testing with bromine water, but it may not be satisfactory as substitution of -OH group can occur. Also, if at all elimination takes place the -Br adds onto the C = C. In both cases decolorization of bromine water takes place and this test may be inconclusive. ]

If you add propane to chlorine will they react and expode without any ignition source? I believe the end result should be 1,2-dichloropropane and H2 Ive heard that chlorine and propane will explode simply when you put them together in the same container. Is this true? Or do you need to ignite them with a heat source? I also heard that even sunlight will make this mixture explode. CH3CH2CH3 + Cl2 ---> CH3CHClCH2Cl + H2

so i'm doing this little presentation tommorow in class, n it's about organic reduction. I am familiar with most of the basics, but i donnu answer to this one: ==> how do u predict the products of an organic reduction? ne ideas? thanx

Hello all, I have a question regarding removal of lutidine from a reaction. I am using 2,6-lutidine as a base in a sulfinylation of an alcohol and I would like to remove it by washing or chromatography. At this point, I don't know enough about sulfinate esters to know whether or not they are labile during chromatography. In a test reaction with neopentyl alcohol, a sulfuric acid wash step removed the lutidine. However, my alcohol has an acid-labile protecting group elsewhere in the molecule, so this step would not work. When I have run sulfonylation reactions with triethylamine as a base in the past, I have used bicarbonate washes to remove the excess triethylamine su…

It is well known that ascorbic acid (a.k.a. vitamin C) is a fairly good reductor and as such it is used by our body and also in many foods. In those places it acts as antioxidant, itself being oxidized, instead of the food or the material in our body. Surprisingly I have found strong evidence, however, that ascorbid acid also can act as a reductor under very "normal" conditions. I would like to have a second opinion on that. I did the following experiments: 1) Add some NaOH to an excess amount of a solution of ascorbic acid. This makes an ascorbate/ascorbic acid mix in solution: OH(-) + HAsc --> H2O + Asc(-) To this, add some copper (II) sulfate. 2) Add …

I`m trying to synth Benzoic Acid from Methyl Benzene (Toluene) as related to this: http://www.scienceforums.net/forums/showthread.php?t=19018 thread. needless to say I`m having a few problems doing it. my findings Thus far.... 1 methyl benzene (MB from now on), was added to KMnO4, there was slight disolution to the purple that then became brown. 2 the addition of 46% H2SO4 to this created 2 layers, the contaminated MB at the top and the muddy brown mix od H2SO4 and KMnO4 at the bottom. 3 upon reflux heating, the MB became clear again as did the muddy mix at the bottom. 4 upon Cooling, the AQ based mix (muddy that became clear) became cloudy white. …

This is a question from a multiple choice exam but I am not sure if I got the answer right: which species is/are sp2 hybridized? I. C2H4 II. C2H6 III. C3H6 a. I only b. I and II only c. I and III only d. II and III only Well II I obviosly know it isn't because it must be sp3 hybridized. Oh I think I see now, because the other ones formm double bonds they must be sp2 hybridized? Am I right?