Organic chemistry Definition and 260 Threads

Homework Statement I need to find the X of two substances using only the data found in lab. Which is: nmixture=1.4156 nbutan-2-one=1.3787 ntoluene=1.4970 For the mixture, I don't know what X (the mole fraction) is. That is what I must find out. Homework Equations nmixture= (Xbutan-2-one...

I just bought this book: March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure (link: https://books.google.co.in/books/about/March_s_Advanced_Organic_Chemistry.html?id=JDR-nZpojeEC&hl=en) But I found that it starts with complex reactions and contains lots of NMR spectra...

Hello, I am interested in possibly fabricating microprocessors if I make it through school. I have yet to take my first course in organic chemistry. Will I have to know anything about organic chemistry if I am to fabricate microprocessors? Do you know if organic chemistry is employed in the...

Does phenol belong to alcohols?

In order to transfer on time from community college and prepare for the MCAT I have to really scrunch my classes. I was planning on taking Calc 3, Liner Algebra, O Chem 1, and Physics 1 (mechanics) at a whopping total of 19 units in 16 weeks. Is this doable? I would not be working and all of my...

Homework Statement Find the product: 2. Relevant concepts Thiols react with vinyl ethers according to anti-markovnikov's rule The Attempt at a Solution After reading Jerry March's book, i came to know that it follows free radical mechanism and that is why it gives anti markovnikov's...

Homework Statement I need to know the pharmacophore of aspirin (acetylsalicylic acid) and ibuprofen. There is a task where I have to compare these two drugs' structure, synthesis, mechanism of action and side effects. Specifically, it says to include, "The chemical structure of the drug...

By properties I mean the +I or -I effect as compared to other functional groups along with whether it induces a +R or -R effect?

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...

Hi! I recently did a lab where my group was to create a polymer via free-radical polymerization. We used acrylamide and potassium persulfate. We DID NOT use bis acrylamide crosslinker ( wasnt in our lab manual for some reason.) I cannot find any web resources that show how acrylamide...

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:

Hello, I am currently taking Organic Chemistry and was wondering what is the relationship between bond length, hybridization, and resonance? In other words, do some hybridization have smaller bond length? How is that affected by resonance?

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...

I am confused with the reduction of quaternary ammonium salt. ##Ph-CH_2-CH_2-N^+Me_3## on reduction with Zn-Hg in HCl will not work. The -NMe3 is not disturbed(given in my text). But why? Also the text says On reduction with LiAlH4 or NaBH4, -NMe3 would be disturbed. what would be the product...

What are the rules for choosing main branch ? Wikipedia states - "Identification of the parent hydrocarbon chain. This chain must obey the following rules, in order of precedence: 1 It should have the maximum number of substituents of the suffix functional group. By suffix, it is meant that...

I want a good book on Physical Chemistry at 11-12(university or pre-un) grade level. It should include topics about bonding(VSEPR, VBT, MO) etc. I also need suggestions about some books on organic and inorganic chemistry.

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! For those who took (or have been taking) the organic chemistry, which methodology do you prefer to tackle the mechanism and prediction questions? I have been reading Loudon & Wade (functional group-based) and Clayden (mechanism-based), but I feel like the mechanism-based approach is...

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...

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...

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 ?

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...

So I'm an undergraduate student in Chemistry in my junior year and I recently transferred schools for a better science program. The one I was at was very, well, easy. Like toddler easy. I never went to class and I aced everything. Here, they're far ahead and it's much more rigorous. I was...

Author: Jonathan Clayden, Nick Greeves, Stuart Warren Title: Organic Chemistry Amazon Link: https://www.amazon.com/dp/0199270295/?tag=pfamazon01-20 Level: Undergrad

"Guess the Mechanism" help! (Organic Chemistry) Homework Statement After identifying my reactants and products via spectral analysis, I am now tasked with figuring out the mechanism behind converting a diol into a ketone. Homework Equations The Attempt at a Solution The key to this appears...

Author: Robert T. Morrison, Robert N. Boyd Title: Organic Chemistry Amazon Link: https://www.amazon.com/dp/0136436692/?tag=pfamazon01-20 Prerequisities: No prerequisites Contents: User comments: https://www.physicsforums.com/member.php?u=331656: I can't really say much about...

Author: Jerry March, Michael B. Smith Title: March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure Amazon Link: https://www.amazon.com/dp/0471720917/?tag=pfamazon01-20 Prerequisities: High-School Chemistry Contents: User comments...

1. Homework Statement Okay, I just started working on my unknown in Lab and I got stuck with a liquid. First I determined the boiling point, my professor told me to let this step go for 30 minutes and it plateaued at around 147°C. I did this twice the first time I didn't do it as long and got...

Homework Statement (see uploaded attachment for picture). I basically have to name this molecule. The Attempt at a Solution I don't know where to start counting for the longest carbon chain and I'm not sure if it's a nonane or octane. If you guys can help it'd be much appreciated

I am having difficulties studying for organic chemistry. The concepts don't seem especially difficult, but I am not performing where I want to be at in this class (1st semester organic chemistry). I do fine in math and physics, and even did well in general chemistry, but it seems the skills...

I suppose this is the right place to post this. I have been studying organic chemistry from more than three-four months and i can't even remember the basic reactions. There seems to be so many reactions which i need to memorize. Whenever i sit to do questions on the reactions, i always need to...

Homework Statement Determine the structure of the compound given the information belowHomework Equations Molecular Formula: C8H6O4 1H NMR: 1.57 (d, J=8.66 Hz, 1 H) 1.77 (d, J=8.66 Hz, 1 H) 3.51 (d, J=3.00 Hz, 1 H) 3.51 (d, J=3.00 Hz, 1 H) 3.60 (sc,J=7.56, 3.00 Hz, 1 H) 3.60 (sc, J=7.56, 3.00...

Homework Statement But-2-ene reacts with bromine in the presence of concentrated aqueous sodium nitrate to give the following compound CH3-C(H)(ONO2)-C(H)(Br)-CH3 Which of the following statement is correct. a.the electrophile is NO2+ b.Only 2,3-dibromobutane is formed. c.Resultant...

Homework Statement http://img51.imageshack.us/img51/9563/chem3.png Homework Equations The Attempt at a Solution I know the answer has to be a or c because you need the ammonia to make this reaction happen but I don't know whether you would want to use 3-oxobutanenitrile or...

How to see if there is a nucleophilic or electrophilic attack? Nucleophilic or electrophilic attack? What type of attack performs a) the water molecule in the attack with one of its free electron pairs? b) bromine molecule when in an attack with a double bond? Motivate! I think...

I am chem major currently taking organic chemistry. I am ashamed of admitting I hate organic chemistry. This is not even science. It seems to me though, it is a branch of engineering. You have stuff, you make new stuff. You increase your yield and figure out steps to synthesize something. I...

Hi, this is my first post. I'm generally more of a blog/message board reader than a contributor, but there's really been something that has been eating away at me, making it difficult for me sleep at night. (Note: long post coming up) Last semester in Organic Chemistry I, I made a huge error...

Organic chemistry reaction Help . !URGENT! Homework Statement I can't type the O-Compounds so here's the Question http://dl.dropbox.com/u/41389643/Photo%2001-03-12%204%2047%2021%20PM%20%281%29.jpg Homework Equations The Attempt at a Solution This is the first time I came...