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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.

3 votes

Temperature & time necessary to carbonize all organics

There's a lot of exciting, and not well defined, chemistry that happens with seasoning cast-iron cookware. Essentially, you are creating a cross-linked polymer film that is hydrophobic, providing a " …
bobthechemist's user avatar
1 vote

How many elements in food?

I think the answer is 26 - as suggested from this periodic table of life One can estimate that the raw materials in the human body amount to approximately $3.50 (so you probably can't sell off your …
bobthechemist's user avatar
3 votes

Difference between conformational, constitutional, and structural isomers and the same and d...

I'm going to assume that you don't need an explanation for the checkboxes the same molecule and difference molecules, so that leaves the following: The terms constitutional isomers and stereoisomers …
bobthechemist's user avatar
7 votes

Bond of interest

To add on to Greg's well-written answer (since this is too long for a comment) we can write Hooke's Law in a slightly more practical form for purposes of predicting IR stretching frequencies:$$\bar\nu …
bobthechemist's user avatar
1 vote

rate determination by 1H NMR spectroscopy

As mentioned in the comments, J. Chem. Ed is a good resource for NMR kinetics experiments. I have had success with the experiment published by J. Orvis in J. Chem. Ed 80(7), 2003, 803 link. This publ …
bobthechemist's user avatar
14 votes

What causes the smell in rotten meat-grease and how can I get rid of it thoroughly?

If you are right, and the smell is coming from an amine, then you may need to clean a lot more than you have. Even if you think you've done a thorough cleaning, amines have very low odour thresholds. …
bobthechemist's user avatar
11 votes
Accepted

Is it safe to condense water into a liquid nitrogen trap?

One use of a liquid nitrogen cold trap is to collect organic and water vapors that are removed from a system under vacuum. In this case, the vapors are collected as ices (solids). See this reference …
bobthechemist's user avatar
29 votes

Why are allenes chiral?

Asked and answered, but I think one thing that's missing is that allenes are not planar like alkenes or alkynes are. You can refer to this question for an explanation. The dihedral angle between th …
bobthechemist's user avatar
1 vote
Accepted

Egg-Detection in Pastries: An Analysis in Heat-Alterated Molecule Identification

There are a number of commercial kits available to determine the presence of egg in commercial products and they are based on a technique called sandwich ELISA (enzyme linked immunosorbent assay). A …
bobthechemist's user avatar