Organic Definition and 449 Threads

Homework Statement I need help for this kinetics question: Chlorination of butene at 0 degrees c, liquid phase, dichloromethane as solvent. initial concentration of butene is 0.1M conversion of 47.71% achieved after 3.1 hours. an additional 0.5M of hot butene was added at this point, which...

Homework Statement I have this problem: I known that reaction with TsOH would replace -OH groups with TsO (substitution reaction). (Et)3N would therefore act as a base to abstract H to form an alkene. The problem is i know it should be an E1cb reaction but how do I obtain an alkene? I tried to...

Homework Statement Homework Equations Huckel's Rule: 4n +2 pi electrons The Attempt at a Solution I'm having problems with the last molecule. I said that the first molecule was indeed aromatic because it has 6 pi electrons and obeys the 4n + 2 rule. The second one is not aromatic because...

In lab we had to synthesize lidocaine, and one of the steps involved reacting a-chloro-2,6-dimethylacetanilide with diethylamine to form lidocaine. My professor told us that diethylamine-HCl crystals would form and these would help us determine the lidocaine yield (since they form at a 1:1 mole...

As in what are the conditions for resonance (i.e. in oganic chemistry) to occur? Sometimes it occurs, sometimes it doesn't; for reasons unknown. A little help please? :/:olduhh:

Homework Statement Label the acid hydrogen in each of the following compounds and arrange them in order of increasing acidity and explain the trend. Homework Equations N/A The Attempt at a Solution I'm not quite sure what the question means by "label" the acidic hydrogen but I believe...

Homework Statement Provide an acceptable name for the alkane shown below. Homework Equations N/A The Attempt at a Solution I never get these right but...my guess would be 2-dimethyl-5-butononane? My reasoning: the longest carbon chain has 9 carbons so the base name would be nonane, there...

Homework Statement Determine the hybridization of the atoms labeled A, B and C in the molecule and the bond angles around them. Homework Equations N/A 3. The Attempt at a Solution A. Normally, I would say it is sp3 for oxygen since there are 4 groups attached to it including the lone...

Homework Statement https://s.yimg.com/hd/answers/i/582779fb3e0b4cecab74f7adb74ed84e_A.png?a=answers&mr=0&x=1422153107&s=7d575e72049bd930d0e263cbd57eff58 The Attempt at a Solution I have attempted to solve it. But I don't know what I'm doing wrong.

Homework Statement I am trying to help my daughter determine the structure of this carbon compound. It has seven carbons, 14 hydrogens and one oxygen. The oxygen must be in a ketone group. Also each carbon is different (as indicated by the carbon 13 NMR). Homework Equations The Attempt...

1. I have been facing problem with the use of carb-prefix under same special conditions in organic chemistry nomenclature.Homework Equations3. One friend of mine suggested me that if there are 3 or more similar functional group, out of which none can be given priority in a single structure, then...

For this question,why Ka =(ch3coo-)(h+)/(ch3cooh) instead of Ka =(ch3coo +x)(x)/(ch3cooh-x) ?

Homework Statement Problem: I am told that the first mechanism is operative in saponification. The Attempt at a Solution However, this strikes me as wrong because the first mechanism involves the formation of dianion. Using hydroxide ion to abstract a proton and make that particular...

I've been eating organic food for the past year, and just recently I heard it's not any healthier for you. Is that true? I spend about 1/3 of my paycheck buying organic, it is really expensive and now I find out, that it's not any better for you. I just want to know if that's true?

Homework Statement 1. A student investigated several esters, and made octyl acetate, an ester with the fragrance of oranges. The student used the acid derivative, acetyl chloride (as you saw decanedioyl dichloride used to make 6,10 nylon) and 1-octanol. Using the following information...

hi all. just to give you a background story - i am graduate student at U of Calgary in the ECE department. My colleague, from the Mechanical department did not show up yet, because of which I have to work alone on my project, including the mechanical part at which i am no expert but have some...

Hi guys As part of my degree I've got to analyses a set of spectras unknown compounds. I've managed to do them all so far, but seem to be struggling on this one particular set. Here's the spectra that I have to analyse: http://imgur.com/a/oVNYe So far I think it might be an ester with a Alkyl...

1. What is the expected major product arising from the reaction of 2-ethylbut-1-ene with bromine in carbon tetrachloride? a. 1-bromo-2-ethylbutane b. 2-bromo-2-ethylbutane c. 1,2-dibromo-2-ethylbutane d. 1,1-dibromo-2-ethylbutane e. 1,1,2-tribromo-2-ethylbutane Attempt: For this one I'm...

1.Which of the following compounds are nonpolar? 1) decene 2) decanal 3) 3-methyl-2-decene 4) 1,2-pentanediol 5) cyclohexanol Select one: a. 1,2 and 3 only b. 1 and 2 only c. 3,4 and 5 only d. 1,2,3 and 5 only e. 1 and 3 only 2. Which of the following compounds are polar? 1) 2-butyne 2)...

In examining the IR spectrum, I noted that there were peaks for CH2-x where x is bromine, methylene (2 peaks) and a peak corresponding to a methyl group; I concluded that I've synthesized n-bromobutane. Is the method I used to interpret my spectra sound? *CDCl3 was the IR solvent In addition...

I want to ask the rate of reaction of organic compound is slower or higher than that of inorganic compound?? I have found an ansswer like that : The organic paricles are molecules. Because of strong covalent bonding within the molecule, organic compounds do not readily react. Reactions...

1. An organic compound containing 57.65% carbon, 4.21% hydrogen and 38.14% oxygen. Determine its possible organic chemical formulae in the form CxHyOz 2. There is none 3. I don't know

Hello! Is it possible to study the organic chemistry without the firm knowledge of general chemistry? I took the general chemistry on last year and will take the organic chemistry on this Fall but I forgot the majority of topics from general chemistry...I heard that organic chemistry is quite...

Hello! I have some questions about the textbooks in the organic chemistry. I have been using the organic textbooks by L.G. Wade, Clayden, and Loudon. I love those books, but I have been hearing that the textbooks wrote by Klein, Carey, Morrison Boyd, and Hornback are really good. Do I...

Hello! I am a rising sophomore with double major in a microbiology and a chemistry. I wrote this thread because I need a guidance in the course selection for the upcoming Fall Semester. Is taking both organic chemistry and biochemistry a good idea? I know that the biochemistry is based on...

Hi, I've red the first 4 chapters in Clayden Organic chemistry, and I got to admit I find the first chapters on NMR and Orbital theory lacking in explanation and figures. I don't feel like i have a clear understanding of the concept after reading these chapters because they seem to assume...

Please look at pictures. I am wondering for (d). Why is the answer the second one? To which structure in Table 3.1 should I compare it to? I compare the first one to CH3CO2-. What about the second one?

I'm taking Organic Chem 1 and 2 during this summer because I'm double majoring with Material Science but so far Organic 1 just feels a bit boring. Yes ofc I'm going to get an A in it but idk it's interesting but at the same time not. I mean High School Ap chem and College inorganic chem...

Do I need to worry about the pore size, or can I just assume that any/all paper filter will remove the organic compound while letting the smaller HCl molecules through? The molecular weight of the organic compound is listed as "240"

I have a list of various organic components I would like to extract from different fruits, vegetables, and plants and get the organic chains as pure as possible. How is that achieved? What science provides insight on the subject? I actually say science, but I'm looking for specific titles...

Homework Statement Rank by acidity Homework Equations Br is lower on the periodic table, hence more acidic. But in the first compound, it is also farthest away from the carboxylic acid, which one gets priority ? The Attempt at a Solution I think The one with the bromo group closest to the...

I've learned that a more active metal displaces a less reactive one. So, according to the reactivity series Ca cannot displace Na but in he reaction given at http://en.wikipedia.org/wiki/Soap_scum Na is displaced by Ca. What is the reason for this exception?

Hey I am new to this forum and I am looking for any pointers about my ORC before I start it up? I made an ORC in my garage with two Swep heat ex-changers, one B35 and one B10 (used but flushed). I have hooked up 3 (used) hot water heaters to the B35, 40 gal each with 4.4 kW elements in them, for...

Hi, everyone.. I do want to know, what are parameters that I have to know to dissolve TiO2,,?? I have tried many solvents like H2SO4, HCl, HNO3, citric acid, ascorbic acid, equi-molar citric/ascorbic acid,, but all was fail. could you tell me,,?? Thank you.. :)

Dear Fellow Members, If we have been given an unknown compound.We even don't know that it is organic or inorganic. Is there any chemical test to determine that the compound is organic or inorganic.. Please Help me out. Thanks...

Hi, I've been reading PF threads for a long time but never really had a question to ask.. until recently. I am doing some of my own studies on OPV devices (i'm still a high school student, so I have no prior research experience of in-depth knowledge on processes that take place at the atomic...

I have attached a file of the alcohol I need to synthesize and my futile attempt... I was thinking of using a hydration reaction to make the alcohol from the alkyne group. So basically I would mix the alkyne group with H2O and some how produce the alcohol group. Am I heading in the right...

I know there are a lot of professional mathematicians on this forum,and I'd like to know where everybody stands on the Bourbaki matter(their methods) ,does anybody (who knows a lot of math) agree(as I do),with what the illustrious mathematician V.I Arnold says here...

Homework Statement Homework Equations The Attempt at a Solution Shouldnt the name for that be 3-fluoro-2-methyl cyclopentene instead of 4-fluoro-3-methyl cyclopentene ?, if not can someone explain to me why ?

Im not that familiar with electrochemistry. You have some liquid solution with some concentration of ions, a reference electrode and a sacrifical electrode. You apply a potential with some feedback to control the potential environment of the liquid in the cell. Roughly? Can you do this...

Memory Allocation and Basis Sets problems and in Gaussian09 I am starting off with Gaussian09 and GaussView software packages. When I did simulations for single molecules it was fine. But for crystal structures, I am giving the necessary values of a,b,c,β etc for a simple monoclinic...

I'm doing a study that involves radio waves passing through organic matter and have come across several sources that state that radio waves may heat organic matter when passing through it (For example: http://www.mobilfunkstudien.org/downloads/peleg_wm_10.5923.j.biophysics.20120201.01.pdf)...

Problem: I have a 2 acre pond from which the water exits via a stand pipe (vertically 10' then horizontally 70'. The stand pipe has become clogged with vegetative material (I left out the ounce of prevention). We have exhausted plans A - F of attempts to mechanically remove the clog with zero...

how does dehydration occur in organic molecules(extracting of OH and H radicals)

If we add br2 / hv to (s)-1,2-dibromobutane. Where would the radical bromine go? The book hints that the product is an optically inactive substance. So I'm guessing that the bromine would go towards the carbon that has the bromine atom on it making 1,2,2-tribromobutane? Would appreciate...

Hello Guys, So I'm trying to build a database of organic compounds that are of interest to the pharmaceutical industry. Most importantly compounds containing heteroatoms (>= 15% by mass). Where do i start!? any good websites or books, with a useful appendix you can tell me about? I would...

Homework Statement Number 8 is the one I was unsure of in my exam. I know a hydride shift would give it a better carbocation, however it was not tetra hedral, so I panicked, and quickly did a alkyl shift, it worked out on the exam, but I was on the verge of running out of time so I...

I am a ChemE major, and I am currently in Organic Chemistry 2. I got through OC1 by the skin of my teeth, and I currently am sitting on a 60% in OC2. Do I need to re-evaluate my major? Do you guys have any tips on how to learn this stuff? I am acing all of the homework assignments, but when...

I'm learning how to do ressonance hybrids and would like to practice. Thanks for your help!

Homework Statement From burning 7,2 litres of an alkyne, we get 26,4 grams of carbon dyoxide CO2 and 5,4 grams of H2O. Determine the formula of the alkyne. Homework Equations CnH2n-2+[(3n-1)/2]O2=nCO2+(n-1)H2O The Attempt at a Solution x litres of Alkyne→n x 44grams of CO2 7,2...