Synthesis Definition and 166 Threads

In the synthesis of ester, how does conc. aqueos calcium chloride remove excess ethanol? I tried google, and found out that a complex is formed. How is this possible? If then what exactly is the complex formed? Thanks. :smile:

Homework Statement I have trouble with finding out the product or equations and i don't understand them could someone please help me with figuring it out Homework Equations copper + sulfur > copper(II) sulfide 8Cu + S8 > 8CuS The Attempt at a Solution How is the sulfur charge 8 ...

Homework Statement Mass of Ferrous Ammonium Sulfate (limiting reagent) = 4.00 grams. Mass of K3[Fe(C2O4)3].3H2O = 2.54 grams. QUESTIONS: 1. Using the above mass of ferrous ammonium sulfate calculate the theoretical yield of the K3[Fe(C2O4)3].3H2O 2. What is the percent (%)...

Homework Statement http://i.imgur.com/H8p56.jpg 2. The attempt at a solution I'm not quite sure how to start this one... I would assume organolithiation could get me started for the two combining, but I'm not quite sure how to get the 3' carbon to spout that ehtyl group or how to...

Homework Statement In my Chem lab we synthesized zinc iodide. To 1g granulated zinc, 2ml distilled water and 4 drops of 2 M acetic acid was added. Then 1g of iodide. The mixture was agitated and several minutes later the reaction completed. There was some excess zinc, so we set up a...

It's been known for some time that synapses are strengthened during the brain's processing of new information. This includes passive activities such as listening to music. However, the linked article discusses new research that indicates the RNA linked protein synthesis that occurs with synapse...

Homework Statement The asteroid Icarus, though only a few hundred meters across, orbits the Sun like the other planents. Its period is about 410 d. What is its mean distance from the Sun? Homework Equations Keplers Law T_1 ^2 / T_2 ^2 = S_1 ^3 / S_2 ^3 The Attempt at a Solution...

Homework Statement 13) (II) At what distance from the Earth will a spacecraft on the way to the Moon experience zero net force due to these two bodies becasue the Earth and Moon pull with equal and opposite forces? Homework Equations NET F = ma G = 6.67 E-11 (Nm^2)/kg^2 Fg =...

Homework Statement Write the complete mechanism for the acid-catalyzed formation of aspirin from salicylic acid and acetic anhydride Homework Equations The Attempt at a Solution I basically know the reaction but I'm not sure how to start the mechanism...Like i know that it is a...

Why is ATP synthesis reversible on the F1 subunit? What is the point of this? Why is ATP synthesis reversible on the F1 subunit? What is the point of this? They did some experiment a long time ago where they took F1 subunit and mixed it with ATP and water, with the Oxygen radioisotope...

I have a couple questions regarding the transformation of graphite to diamond. As I understand a common method of diamond synthesis involves applying high pressure and high temperature to a graphite sample for a few days and then removing the high temperature and finally the high pressure to...

Homework Statement A reaction of nonanoyl chloride with cholesterol to form cholesterol nonanoate, pyridine is also used in the reaction. 1.If a student starts with 0.2543 g of cholesterol, 1.4 mL of pyridine, and 0.14 g of nonanoyl chloride, what would be the theoretical yield of...

homework help... Homework Statement why mitochondria is called the power house of the cell? which is the site for protein syntesis in a cell?? Homework Equations The Attempt at a Solution I found out that mitochondria is the site for protein synthesis but I think its kinda...

Homework Statement At what distance from teh Earth will a spacecraft on the way to the Moon esperience zero net force due to these two bodies because the EArth and Mon pull with equal and opposite forces? Homework Equations net force = m a a radial = r^-1 v^2 Fg = r^-2 G M m...

Are there any attempts to synthesize between these two theories? I mean are there methods from QFT being used in QC and vice versa? I asked one professor from my univ if I were to research under his belt in QC, would I need some QFT knowledge and he said not. So I wonder are they really...

Hi. I was to plan and conduct the reduction of 4-t-butylcyclohexanone into 4-t-butylcyclohexanol using NaBH4 as reducing agent, MeOH as solvent, and NH4Cl. My question is about the use of NH4Cl. How does it act as a quenching agent? I've figured out that it acts as a quenching agent by removing...

Homework Statement Is transcription a subprocess of translation in protein synthesis? The Attempt at a Solution I know that transcripition consists of four processes 1. activation 2. initiatian 3. elongenation 4. termination I know that protein synthesis consists the following...

Homework Statement I am trying to figure out what is produced from the reaction of sodium borohydride and methyl benzoate. How would you name it? I am really bad at nomenclature... Homework Equations NaBH4 + C6H5COOCH3The Attempt at a Solution My result is bascially methyl benzoate, but...

Actually this is a part of homework. I've found the answer, but I have some problems. The lab I did in previous lesson is the preparation of K3Fe(C2O4)3.3H2O from Fe(NH4)2(SO4)2.6H2O In the first step, Iron(II) ammonium sulphate was reacted with oxalic acid dihydrate to form Iron(II)...

Homework Statement Okay I'm having trouble with my post lab question. This lab is on the synthesis of Iron(III) Oxalates. I have to figure out the theoretical yield, but i can't seem to even find a balanced equation. I've gone over this a million times but can't seem to figure it out...

Homework Statement I have a benzene ring with one methyl group attached and 1-butyne as the two reagents. The final product is a combinination of both into one molecule with the alkyne group in the butyne becoming an oxacyclopropane and the first carbon in the alkyne becoming attached to the...

Homework Statement Our sun rotates about the cneter of the galaxy (m = 4*10^41kg) at a distance of about 3*10^4 light years ( 1ly=(3*10^8m/s)*(3.16*10^7 s/y) what is the period of our orbital motion about the center of the galaxy? Homework Equations Okay so I believe you would use...

I've been staring at these for a while now and I can't seem to get them. I would really appreciate anyone's help with these. 1. Methylcyclohexane -> 1-methyl,2-bromo-cyclohexane (bromine added to ortho carbon in respect to the methyl group). The main problem here is that I don't know where to...

I've been staring at these for a while now and I can't seem to get them. I would really appreciate anyone's help with these. 1. Methylcyclohexane -> 1-methyl,2-bromo-cyclohexane (bromine added to ortho carbon in respect to the methyl group). The main problem here is that I don't know where...

I have a few questions about the synthesis and toxicity of hydrazine (N2H4). First of all, is it possible to synthesize hydrazine under a fume hood by mixing concentrated ammonia, sodium hypochlorite (bleach), and a gellatinous material (gelatin?)? I have read that high temperatures and high...

Doesn't condensation imply a change from a gas to a liquid? Were the nucleotides gases when the phosphodiester bond formed? Were the amino acids gases when the peptide bond formed?

[SOLVED] Luminol and synthesis (mechanism of the reaction) In lab I synthesized luminol and I'm trying to figure out the mechanism of the reaction. 3-nitrophthalic acid + hydrazine => 5-nitrophthalhydrazide + Na2SO4=> Luminol...

Homework Statement Predict the product, along with the reaction mechanism,of the given reactants -: Ph-Mg-X + tert-butyl alcohol \longrightarrow \ ? My attempt This is a grignard synthesis, RMgX where R is phenyl carbanion . The general reaction with water gives alkanes,and X-Mg-OH ...

Hello, everyone!Now I'm studying VHDL, and our teacher gave us some questions as follows: 1. Complete the following code fragment and try to synthesize the VHDL: process begin wait until Clk = '1'; Phase <= "0" after 0 ns; Phase <= "1" after 10 ns; end process; What is the error message...

Here is the "[URL Synthesis Report Summary for Policy Makers. [/URL] Now just what is the debate? I seem to have missed it. What credible scientific institution is disputing the IPCC conclusions?

Voice Synthesis with a uC -- Audio File IP Available? I'm working on a project that will involve voice synthesis and playing simple tones using a mid-range 8-bit microcontroller (uC). I've done my own proprietary tone synthesis many years ago (with an 8051), but for this present project, I'd...

Homework Statement What is the solid that forms during the addition of phenyl magnesium bromide to methyl benzoate (step before triphenylmethanol)? Homework Equations See below. The Attempt at a Solution I know the structure of the product, but I don't know exactly how to name it. The...

Homework Statement Exactly how do you find the theoretical yield of methyl m-nitrobenzoate from 10.0 g of benzoic acid? Homework Equations 1) Ph-COOH + CH3OH + H2SO4 --> Ph-COOCH3 2) Ph-COOCH3 + HNO3 + H2SO4 --> methyl m-nitrobenzoate The Attempt at a Solution 10.0 g...

Sorry, I'm not much of a biology expert, but I was looking into the interactions between b5 and omega 3 fatty acids. I wanted some help clarifying this. http://www.pdrhealth.com/drug_info/nmdrugprofiles/nutsupdrugs/pan_0196.shtml Does that imply that it breaks down fatty acids and uses them as...

After drawing the 8 alcohols with the formula C5H11OH, I'm asked to "Describe how they are formed and give two uses for this type of alcohol." The only example in my text for this is the hydration of an alkene which, at a glance, wouldn't make sense for 2,2-dimethyl 1 propanol. Is this one...

I am attempting to synthesize some allyl hexanoate and I am having a little bit of a hard time figuring out the procudure to go about it. I am going to start with n-hexanol, and using Na2Cr2O7 and H2SO4, create hexanoic acid through oxidation. Then I was going to run an ether synthesis...

Hi, The problem was to propose a synthetic scheme for making maleic acid (cis-but-2-ene-1,4-dioic acid) from acetylene (as part of a larger synthesis where I would have to use the maleic anhydride in a Diels-Alders cycloaddition with 1,3-cyclopentadiene made from cyclopentanol to get a...

I numbered each reagent and product so you can point and laugh accurately. Any tips would be awesome!

Hey, I'm trying to figure out how to convert 4-methylpentanoic acid into 4-methyl-2-bromopentanoic acid and I'm stuck. It's second semester O-chem for reference. Any ideas? Thanks.

Hi, In the isopentyl acetate synthesis from acetic acid and isopentyl alcohol, what do you extract it with? All the things I've read online say to extract with water, then 2x sodium bicarbonate, then saturated NaCl. However, the procedure we are supposed to modify this from is different. In...

There is a large body of documents from the 1920’s through the present day which are important for researching and understanding the history and development of the Fischer-Tropsch and related processes. The purpose of this Fischer-Tropsch.org is to make these documents available in electronic...

Synthesis Reactions---Help :smile: I am having trouble deciding two different synthesis equations for an experiment done at school. The expermient consisted of heating magnesium and then adding a few drops of H2O. Reactions where Nirtogen, Magnesium, and H2O. The products where Ammonia...

Hello guys and girls. I am writing to you all today in hopes that someone out there will be able to help me with my problem. I am asked to synthesize the molecule camphor starting merely from acetly-CoA and Acetic Acid. This must be done in a biological manner. Ie. The Co-A group will be...

Problematic "Synthesis" of Sodium Acetate Greetings all, was hoping someone more knowledgeable than me (not a tall order, by any means) could point out some errors in my theory or method here. Fascinated by pictures of supersaturated NaCH3OOH solutions crystallizing at the drop of a dime (or a...

I try to find the synthesis of benzyl alcohol, but I can't get it. Can some one show me how to do the synthesis of benzyl alcohol, in detail. Can someone give me the website to find the synthesis of benzyl alcohol Thanks

How are signals form insulin integrated with those from adrealine and contraction to regulate the breakdown or synthesis of glycogen in muscle? I know that adrenaline stimulates the conversion of ATP to cyclic AMP by activating adenyl cyclase, and I think insulin does the opposite. But how are...

I've been looking at some explanations and pictorial illustrations of ribosomes in my biology book. Now, they say that ribosomes are the sites of protein synthesis, and I am confused because the ribosomes are situated on the outside of the rough ER, but the newly synthesized proteins seem to...

I am planning to perform some Williamson synthesis. However, I have not been successful on obtaining a literature with described procedure. Will I need any procedures? I have looked at Organic Syntheses website (website url), but no procedures on the Williamson's technique. My plan is simple...

In transcription, the mRNA, with the help of RNA polymerase, creates a code complementary to the sense strand on the DNA (i think). So does that mean that the mRNA's codon is opposite of the actual codon that codes for a protein? This would mean that the anticodon on the tRNA and the codon on...

Dose anybody know a synthesis of phenol-formaldehyde witch will have a vary pure product and is there a solvent for this polymer that dose not destroy it