@Zhe how feasible would it be that oxygen would lose an electron to form O+ ion, given that then O would attain a stable half-filled orbital configuration? I was wondering that O+ is really uncommon, so that is probably unfeasible
@ApoorvPotnis i'm not talking about forced condition but favorable condition. That IE is probably being measured under forced conditions
Question: says that1:
...in reality, p-chlorobenzoic acid is less acidic than p-fluorobenzoic acid . Why?
I checked the $\mathrm{p}K\mathrm{a}$ values, and they are:
4-Fluorobenzoic acid: $4.14$
4-Chlorobenzoic acid: $3.98-4.03$
So, 4-Chlorobenzoic acid is indeed more acidic than 4-Fluo...
1. Reactions involving strong electrophiles (nitration) are
said to be governed
by
Inductive effects thus the order of nitration is
D>C>B>A
2.Chlorination is a less polar reaction thus chlorination said the be governed by hyp...
@Jojostack That would be great as my answer is not based upon any literature . I really look forward to finally getting an answer from credible sources.
@LinearChristmas Regarding the question: Is there a performance difference between \pu and \mathrm. Yes, there is. Ater all, \pu is doing some parsing. But it should be neglectable. It should be less than 100 ns. I.e. 10 occurances would have an overhead of 1 ms. Nobody would notice. (It's hard to properly measure such things. My measurement comes from 50000 usages of \ce. My feeling was that the garbage collection has most impact on the running time, not the CPU usage itself.)
Regarding the question whether to use \pu instead of \mathrm, I'd kindly ask to use it only for numbers and/or units. And I'd strongly advice against mis-using it for more than pure letters. Everything that goes beyond pure letters might get rendered differently, in future. For instance, m2 rendered differently in earlier versions. And the rendering of kg.s will change shortly.
2
Regarding the question whether \mm or \mr could be created as a shortcut for \mathrm. Yes, they could. It's as easy as typing \let\mr\mathrm. And it's a little bit more complicated to do that in a MathJax extension. But one has to be careful not to create side-effects.
I already thought about a C.SE extension for MathJax. You could discuss features and I could create it. If everything works perfect, the C.SE extensions become the de-facto standard that people want to use everywhere (like amsmath). But there is also a good chance that C.SE becomes a more and more closed community ("They even have their own flavor of LaTeX").
Question: says that1:
...in reality, p-chlorobenzoic acid is less acidic than p-fluorobenzoic acid . Why?
I checked the $\mathrm{p}K\mathrm{a}$ values, and they are:
4-Fluorobenzoic acid: $4.14$
4-Chlorobenzoic acid: $3.98-4.03$
So, 4-Chlorobenzoic acid is indeed more acidic than 4-Fluo...
1. Reactions involving strong electrophiles (nitration) are
said to be governed
by
Inductive effects thus the order of nitration is
D>C>B>A
2.Chlorination is a less polar reaction thus chlorination said the be governed by hyp...
The Periodic Table
The Periodic Table