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Results tagged with organic-chemistry
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user 57547
Use this tag for questions relating to organic molecules and their properties (structure of organic molecules, spectroscopic properties, reaction mechanisms, stereochemistry etc). DO NOT use this tag as the only tag in your question, as this tag by itself cannot appropriately classify your question. Always use this tag in addition to other more specific tags.
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Concentration of Solute And Solvent
The mixture, originally 4L of 25% motor oil, loses acetone by evaporation until you have 1L of 100% motor oil. The % of motor oil increases from 25% to 100% as the acetone evaporates off.
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What acid will dissolve iron carbonate?
Two issues arise immediately: 1) dissolving a variable thickness of iron carbonate (probably also of varying composition) and 2) not affecting the fossilized bone (which also probably has varying comp …
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What is the white powder that I have extracted from cinnamon?
"6 grams of cinnamon can contain from to 42 to 189 mg cinnamaldehyde." http://herbpedia.wikidot.com/cinnamaldehyde That's not very much.
"Cinnamon consists of a variety of resinous compounds, inclu …
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Acidic strength
The question is a very good one. I upvoted it because it shows how a student can see quite clearly what the teacher is either too unfamiliar with or too familiar with.
The basicity of ammonia and the …
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Nitric acid acting as oxidising agent
The reactions of nitric acid could be due to 1) its acid nature, 2) its oxidizing properties, or both.
Orthocresol was correct that the substrate could predetermine which course was more likely: aci …
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Explain the mechanism of glycerol solubility in ether.?
According to a 1951 article in J. Am. Chem. Soc., water is soluble in diethyl ether to the extent of 1.468%, although other investigators had found between 1.19 and 2.66%. https://pubs.acs.org/doi/abs …
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Resonance with different size orbitals
The fundamental question is: which is more acidic, 2-pyrrolidone or 2-pyrrolidinethione?
If you took a 50-50 mixture of the two and added enough alkali to neutralize half of the mix, what would b …
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Why are Tertiary Radicals more stable than Tertiary Carbocations?
The magnitude of the effects needs to be considered. To form a radical from isobutane, you break a C-H bond. To form t-butyl radical requires about 93 kcal/mol (390 kJ/mol) https://en.wikipedia.org/wi …
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Solubility of Amides
Urea ($\ce{H2N-CO-NH2}$) is the quintessential amide. It is extremely soluble in water, and you could say it is a hydrogen donor and acceptor in water.
However, if you replace one of the $\ce{-NH2}$ g …
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Solubility of Organic Compound confusion
There are two regions of bond energy to look at here:
The bonds IN a molecule: a carbon-hydrogen bond has about $\pu{100
kcal/mol}$ of stabilization. An oxygen-hydrogen bond is a little
stronger …
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What is the standard way to know the price of a chemical substance?
Aldrich is a very well-known and reliable supplier for laboratory chemicals. They may not have the exact material you want, but if they have it, it is probably a good value. Start there and see if som …
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Reaction of phenol with Zinc dust
The net result is $\ce{C6H5-OH + Zn -> ZnO + C6H5-H}$, but under the reaction conditions (zinc DUST and strong heating; b.p. of phenol is $\pu{182 ^\circ C}$), I suspect the reaction mechanism involve …
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What percentage of a 20 volume solution is actually hydrogen peroxide?
When a 3% solution of H2O2 decomposes completely, it produces 10 times as much volume of gas as the initial volume of liquid. This is the common hydrogen peroxide available in stores. I buy it often.
…
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Why is the rate of reaction of polar EAS favored by inductive effects and the rate of less p...
Nitration (strong electrophile, "hard" Lewis acid) has a low activation energy, so effects on the transition state will have a smaller relative contribution to the rate controlling step.
Chlorinatio …
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6
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Accepted
Are these molecular structures of cyclodecapentaene identical?
If you make spring-and-ball models of both compounds, you can see that the two compounds are entirely different, and both are contorted.
The all-cis model on the left has all its hydrogens pointing o …
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