All Questions
Tagged with fats organic-chemistry
22
questions
5
votes
1
answer
331
views
why is alpha-linolenic acid "alpha"?
I'm learning about how fatty acid names are formed. In the process, I noticed a molecule called alpha-linolenic acid. There's a similar molecule called linoleic acid. Both have 18 carbons, but alpha-...
- 129
1
vote
0
answers
143
views
What reaction products are formed if an unsaturated fat is reacted at 20 - 50 °C with H2O2 of 35 %?
My question is:
What reaction products are formed if an unsaturated fat is reacted at ca. 20 - 50 °C with aqueous hydrogen peroxide of ca. 35 %?
To find the answer, we can subdivide the question into ...
- 271
-3
votes
1
answer
109
views
Can glycerol in substituted natural fats be a monomer according to European REACH Regulation? [closed]
European REACH regulation for registration of chemical substances has an own definition of a polymer according to this regulation.
I've noticed the following problem.
I want to discuss here only the ...
- 271
1
vote
1
answer
67
views
Where do the chloride ions go during saponification precipitation?
During saponification hydroxide ions from the lye join to the triglyceride to form glycerol, and the sodium bonds with the fatty acids making the soap molecules. However, it is sometimes the case that ...
- 313
0
votes
0
answers
30
views
Why there is not a consistent pattern between the carbon chain length and the melting point of fatty acids? [duplicate]
I looked at the melting temperature of different saturated fatty acids and I expected to see that with a longer chain of carbon the melting point would be higher as after all the var der Waals ...
0
votes
0
answers
75
views
Saponification - Oil and Alcohol?
I've been reading that a saponification reaction typically involves NaOH or KOH. I was wondering - could anything that contains an OH group cause a saponification reaction? For instance, coconut oil + ...
- 36
-2
votes
1
answer
2k
views
Does glycerin dissolve in fat?
İ couldn't find much info on internet about solubility of glycerol in triglycerides. I suppose it is non soluble because glycerin is polar but fats aren't. But fats have glycerin side in them too, so ...
- 35
0
votes
0
answers
20
views
Does double ended fatty acid exist? [duplicate]
A fatty acid consists of a carbon chain, with a carboxylic acid on one end, and just a hydrogen on the other.
Does a substance with two carboxylic acid ends and no hydrogen end exist?
- 479
4
votes
1
answer
177
views
Are all fatty acids monocarboxylic acids?
The answer to this question might solve a multiple choice in my previous chemistry exam, which caused an argument with my teacher.
We know that fatty acids form fats and oil due to their carboxylic ...
- 141
1
vote
0
answers
87
views
Double bonds in polyunsaturated fatty acids
$\omega - 3$ fatty acids are very frequently discussed. $\omega - 6$ is also mentioned. However, I don't recall mention of $\omega - 1$, $\omega - 2$, or $\omega - 4$. Also, in polyunsaturated ...
- 826
1
vote
1
answer
640
views
Gelatination of solution in saponification
When I performed a saponification experiment in school, I added some ethanol to the solution (glycerol ester fatty acid + sodium hydroxide) to change the equilibrium of the reaction. (Molecules of ...
- 21
3
votes
3
answers
400
views
fatty acid vs polyethylene [closed]
Both fatty acid and polyethylene are made (mostly) of carbons with hydrogens with a very similar configuration, yet, their properties are very different. What am I missing?
- 141
14
votes
1
answer
22k
views
What makes trans fats more harmful than saturated ones?
Why are by many trans fats considered to be worse for you than fully saturated fats?
I am asking specifically which of their structural features accounts for this condemnation. They won't form clumps ...
- 149
3
votes
0
answers
153
views
Are there super(calorie-)dense foods?
It’s commonly reported that there are 9 kilocalories per gram of fat, 7 per gram of alcohol, and 4 per gram of carbohydrates or protein. But these figures (with the exception of that for alcohol, ...
- 131
0
votes
1
answer
5k
views
Trying to understand the causes and implications of kinks in fatty acid chains
I watched this video (The Deal with Fat by SciShow):
https://www.youtube.com/watch?v=mvvx2yQRbzQ
To summarize the main points I want to discuss:
Saturated fats are chains without any double-bonds ...
- 73