Anyone can help me on the chemistry notation

AI Thread Summary
The discussion centers around the chemical notation (COOEt)2C, with participants clarifying that "Et" stands for an ethyl group (CH3CH2-). The compound in question is identified as diethyl malonate. Participants express gratitude for the clarification, indicating a successful exchange of information.
ntusg
Messages
8
Reaction score
0
I encountered a chemical (COOEt)2C, and I don't really know what does Et mean. I am not familiar with chemistry, but I guess this is something similar to -R which stands for -CH3, -CH2CH3 etc. Could anyone help to explain?

Thanks you very much.
 
Chemistry news on Phys.org
Just visiting, but I learned something new, thanks Ygggdrasil!
 
Ygggdrasil said:
Et represents an ethyl group, CH3CH2-

(COOEt)2C represents the compound diethyl malonate

Thank you, Ygggdrasil! I just got the same answer from other friends ...
 
I was introduced to the Octet Rule recently and make me wonder, why does 8 valence electrons or a full p orbital always make an element inert? What is so special with a full p orbital? Like take Calcium for an example, its outer orbital is filled but its only the s orbital thats filled so its still reactive not so much as the Alkaline metals but still pretty reactive. Can someone explain it to me? Thanks!!
It seems like a simple enough question: what is the solubility of epsom salt in water at 20°C? A graph or table showing how it varies with temperature would be a bonus. But upon searching the internet I have been unable to determine this with confidence. Wikipedia gives the value of 113g/100ml. But other sources disagree and I can't find a definitive source for the information. I even asked chatgpt but it couldn't be sure either. I thought, naively, that this would be easy to look up without...
Back
Top