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Organic Chemistry

All chemistry involving organic compounds (those with C-H bonds).

  1. Started by LKL,

    Any ideas what chemical(s) might be used to completely dissolve a grain of wheat, including the husk. It doesn't matter if the carbohydrates/proteins/cellulose are altered in the process since the aim is to study natural radionuclide levels in foodstuffs (my mother's new job). Any help will be greatly appreciated.

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  2. Started by the tree,

    For example, a very basic hydrocarbon. [math]{H}_{n}{C}_{2n+2}[/math] So when n = 1 you have methane and when n = 2 you have ethane et cetera. What if n was equal to a few million, billion even? Would the molecule eventually just fall apart and have to find something less big to bond with? Or could n keep on getting bigger indefinately?

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  3. Started by ecoli,

    I recently had a pen explosion take place in my house. does anybody know a way that I can get the stain out of my wooden floor? What is the chemical formula for ink? What can get it out? Alcohol, maybe? I've tried various detergents with little success.

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  4. Started by tikobrahe,

    Hi, I am interested in working with 4-vinyl pyridine. I know from the MSDS that the pure form is not very stable at room temp and is often kept in a glovebx or maybe handled while wearing a respirator. I am interested in working with dilute aqueous solutions (< 100 mg/L). Can anyone give me advice about how these need to be handled, e.g. stability of at room temperature and ambient air, need for respirator, etc? Any advice is much appreciated.

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  5. Started by aommaster,

    Hi guys! In my chemistry course, we learnt different reactions of halogenoalkanes, such as substitution reactions, and elmination reactions. One of the reactions that came up was a combustion reaction. What are the products of teh reaction if the substance is burnt completely in air. I know that water and carbon dioxide are produced, but what happens to the chlorine, or the halogen that is attatched to the chain? I did a quick lab test, in which I used litmus paper, and there was certainly an acid produced. But which one? Thanks alot for your help!

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  6. Started by akcapr,

    does anyone know some interesting synthesis/experiments with organic compounds? and im just a beginner so i dont have much knowledge or experience with this field. thx

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  7. Guest hotkarl
    Started by Guest hotkarl,

    I've started making a buffer solution by mixing 6g iodometric starch in half a litre of water. I then added 20g KOH and heated it up a bit to get it to dissolve. I am now going to add a small amount of acetic acid, then adjust the pH to 4 using HCl. The thing is, my solution was colourless until the last of the KOH dissolved, I left it for 2 minutes (never do this!) and came back to find it was pale green! Please can someone suggest why?

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  8. Guest justany
    Started by Guest justany,

    The dash board of automobiles is covered with plasticized polyvinyl chloride. Can you explain why this covering eventually cracks. Does this relate in any way to the "fog" that forms inside on the new car windows???

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  9. i was looking through a book on the elements today when i came across iridium. interestingly enough, it mentioned the Ir- oxidation state, as well as the Ir+, which, apparently, are very rare. In addition, it mentioned a clathrate where iridium is at a neutral state. Ir-1: [ir(CO)3(PPh3)]- Ir(O): [ir4(CO)12] Ir+1: [ir(CO)Cl(PPh3)2] has anyone ever tried making any these? is anyone familiar with any of these? the concept of reducing elemental iridium to an anion is most intriguing.

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  10. Started by akcapr,

    does anyone kno what the solvent in sharpies is? ive heard its nitroparaffin, but that didnt really make sense

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  11. Started by Mendelejev,

    Hey guys, I am searching how I can make a solution of plastic. I have some plastic stars that glow in the dark, but would like to make a solution of it with the same properties (glowing in the dark). Has someone an idea. I don't even know what kind of plastic it could be. I don't think acids will work. I've tried to melt the plastic. It melts very fast at low temperatures, but loses it's yellowish color and becomes brown, due to combustion i think. And even if I would be able to melt the thing, it would become solid again. And i want a liquid.

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  12. Started by Hephaestus,

    This may sound weird, but some of us are interested in purifying our own elements. While trying to do the infamous P from urine extraction I got to wondering... What compounds may be extracted from urine, bones etc and how? Obvious ones are urea from urine and Ca salts from bones. I would like to set up a display of "Bodily extracts". One bored chemyst

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  13. Started by Sarahisme,

    hey is the correct name for this (Z)-3-Ethyl-4-methyl-pent-2-ene or (E)-3-Ethyl-4-methyl-pent-2-ene i thought it'd be (E)... but yeah... what do you chemistry wizs' think?

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  14. Started by Sarahisme,

    hey i am writing up my prac on the preparation of aspirin, and just can't seem to find any information on what the "published" or "accepted" yield is. In my experimetn i got 86% (which i think is a little high). Cheers Sarah

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  15. Started by jacknife360,

    How do you convert tryptamine to tryptamine hydrogen chloride (HCl). Just add HCl (aq)?

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  16. Started by budullewraagh,

    for my bio final project, i'm testing the effects of certain drugs on receptors in daphnia. i want to see what various alterations to these drugs do to the daphnia, although i have to be careful with what i do, as some things are legal and others are not. take for example ephedrine, which i want to test. if i were to reduce it, i would be working with crystal meth, which is illegal and wont fly with my teacher. im allowed to use otc drugs and natural plants, such as morning glory seeds (for small amounts of lsa) so long as i dont perform extractions on the plants. this also raises the question of the cyanogenic glycosides, as the aglycone component hydrolyzes to f…

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  17. Started by blackout,

    so, I know that sodium methoxide can be prepared by reacting sodium metal, hydride, amide or hydroxide. what about Na2CO3?

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  18. Started by YT2095,

    I`ve done a little research into this already and have come up with nothing yet. 2 strong solutions of Sugar (sucrose C12H22O11) and sodium hydroxide (NaOH). both liquids are quite "thin" (not very viscose), and yet when combined they react to make a very thick syrup like liquid. eventualy it will crystalise into a clear solid that isn`t at all sweet. what is this reaction? and does it form a glucoside, as that`s about the closest I came to any sort of answer (one that left me with more questions).

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  19. Started by Lance,

    I have seen these markers and I was wondering if anybody knew the chemicals used in making them. The paper that goes with the markers is coated in some type of solution that will turn the clear ink in the markers the corrisponding color but each marker turns the paper a different color. Anybody know how they make them?

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  20. Guest Red Lemon
    Started by Guest Red Lemon,

    Hey guys, I've been given a synthesis problem that I just cannot solve. It says: "Outline a strategy which might be used to give the interlocking alkene complex shown below from two molecules of a large cyclic monoalkene." The interlocking complex appears to be a catenane with the two rings just looped through each other. The large cyclic alkene is just a huge (unspecified size) ring with nothing but one alkene group and the rest just CH2 groups. Any ideas?

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  21. Guest dearknarl
    Started by Guest dearknarl,

    Gday guys, Is there a simple relationship between pressure and concentration of co2 dissolved in water at room temp? Or can someone point me in the direction of a graph? I'm interested because I would like to have an idea of how much CO2 there is in a beverage depending on the volume and pressure. Regards, knarl.

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  22. Started by Mendelejev,

    Could someone explain me the following : I made a TLC of three amino acids : glycine, leucine and aspartic acid. I used a ethanol-water-ammonia (25%) solution (8 parts ethanol, 1 part water and 1 part ammonia). My calculated Rf values were quite similar with those found on internet : aspartic acid : 0,24 glycine : 0,26 leucine : 0,73 But why does leucine go so high ??? Aspartic acid is the most polar, so i would think it would have the highest Rf value becouse my solution is also polar. Glycine with R = H is less polar, but leucine is quite apolar becouse R = (CH3)2-CH-CH2- ! So it would be logical that leucine would have the smalles Rf-value. Could some…

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  23. Started by 6431hoho,

    what do each elements in compounds of steroid do?

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  24. Started by YT2095,

    this confuses me... benzene with a hydroxyl is phenol, Fine. phenol with 1 or more hydroxyls goes back to being called Benzene again? ie/ why is 1,2,4 trihydroxylbenzene not called 2,4 dihydroxyphenol?

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  25. Started by Chatha,

    I am going to laugh silly if we eventually find that life is a chemical compound or element. Does anyone think so? DNA sure is.

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