The discussion centers on the molecule p-phenetidine, highlighting the chemical shifts observed in its NMR spectrum. Aromatic carbon atoms are noted to appear very upfield, while carbon atoms bonded to oxygen (C-O) and nitrogen (C-N) are positioned more downfield, though still slightly upfield compared to carbon-carbon (C-C) bonds. The conversation concludes with a participant expressing gratitude for the clarification and confirming their understanding of the topic.
#1
Anmol Dubey
15
1
TL;DR Summary
I am having a hard time identifying the carbons from the CNMR spectrum. I have identified the molecule and the number of peaks.
Do the published values of Enthalpy include the work done against a constant pressure, e.g., the atmosphere? (I am not a chemist). I am reviewing enthalpy and entropy as part of the statistical mechanics applied to transistors. I assume, from my reading, that the work done would mostly apply to reactions involving gasses.
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...
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!!