The Periodic Table

Abcd

12:01 AM

Why are some questions appearing this way?

Avnish Kabaj

12:57 AM

@Abcd I don't use the desktop site could be because of your favorite tags/ views of the question

Abcd

@AvnishKabaj favourite tag colour is different

Gaurang Tandon

1:28 AM

can this question please be protected?

0

A: Difference between solubility and dissolution?

solubility: the capacity of solute to be dissolved in a given amount of solvent (how many moles of solute are dissolved) solutes solubility is always questioned it is a thermodynamic process its unit is mol/kg dissolution: rate of solute dissolving in a solution (how fast the solute diss...

I'm sure I've seen 1rep users post answers more than once, which add little value

Gaurang Tandon

1:39 AM

@M.A.R.ಠ_ಠ the answers by Sher Singh and Manahil look extremely similar, I'm surprised I cannot find the plagiarization source they've used

1,3-feeds

2:08 AM

-2

Q: What is the detailed mechanism of conversion of sodium salt of benzene sulfonic acid to phenol?

I don’t understand how NaO removes SO3Na from the ring? Could you provide a diagrammatic view of the mechanism? I also don't understand the breaking of NaOH to produce NaO and H+ doesn't it usually break into Na+ and OH -

discussion

1

Q: my question was closed as too broad, so I edited it as directed, but still nothing happened

I have a question about my Chemistry Stack Exchange post: Is there a terminology contradiction about whether the conjugate of a strong acid is a "weak base"? The original version of my post was asking about several apparently contradictions in the ways that "strong" and "weak" were used for...

support

0

Q: links to my posts point to chemistry.meta.stackexchange.com instead of chemistry.stackexchange.com

I have a question about my Chemistry Stack Exchange post: Is there a terminology contradiction about whether the conjugate of a strong acid is a "weak base"? When I fill out the form to post a new question on chemistry.meta.stackexchange.com, it shows me the links to questions I have posted...

bug

Gaurang Tandon

chem.libretexts.org/Core/Physical_and_Theoretical_Chemistry/…

libretexts' latex usage makes me cry... cries

Avnish Kabaj

3:06 AM

4 hours ago, by Avnish Kabaj

I have the power . BWAHAHAHHAHAHA!

No one should have this much power

Abcd

5:02 AM

Why does Carbon go inversion in $S_N 2$ reaction? Why does $sp^3$ become $sp^2$ hybridised?

How is that feasible?

M.A.R. ಠ_ಠ

6:43 AM

@Abcd ignored tags

Abcd

Okay.

Avnish Kabaj

This is gold

@Abcd it's given is clayden somewhere with lots of pretty colored pictures

Abcd

@AvnishKabaj I can't find it.

Page number please

Avnish Kabaj

7:13 AM

@Abcd can't find it either

Gaurang Tandon

9:01 AM

@MollyCooL sorry, i read your msg on mobile, but forgot to reply on pc, shouldn't happen again; i was talking about this - en.wikipedia.org/wiki/1,8-Bis(dimethylamino)naphthalene

Abcd

@GaurangTandon $sp^3$ looks better than sp3

Anyway, at the end of the day IUPAC is so pedantic! I mean who cares so much about short notations!! Just let them be written the way they look nice @IUPAC!!!

Gaurang Tandon

9:20 AM

hehe

you know how much menace this caused in the past centuries of chemistry?

go read this - old.iupac.org/general/about.html - one of IUPAC's main goal was standardization of notations and nomenclature

so you can't blame them for being pedantic

Gaurang Tandon

9:53 AM

@Abcd why did you change "Sol" to "Solution" here? chemistry.stackexchange.com/q/94051/5026

sol is actually an accepted term in colloidal chemistry

Avnish Kabaj

Sol is something in 12th right

Gaurang Tandon

"A sol is a colloidal solution suspension of very small solid particles in a continuous liquid medium. Sols are quite stable and show the Tyndall effect" read Wikipedia to begin with

@AvnishKabaj totally right. I wonder why Abcd changed that?

Avnish Kabaj

He must not know what it is

You're the guy who changes 1 to 1 and 2 to 2 though

:P

Gaurang Tandon

@AvnishKabaj of course I do, I also change sp3 to sp3, SN2 to SN2, pKa to pKa, etc.

will the negative charge delocalise here? can any chemist help me here? I was taught that 3rd period elements have vacant d-orbitals, but veteran posters on Chem.SE hate vacant d-orbitals (especially excitation of electrons into vacant d orbitals during hybridization), so what is true?

Avnish Kabaj

10:14 AM

Going to be a very bad overlap

Gaurang Tandon

@AvnishKabaj high schoolers with excitable d orbitals should remain quiet while the chemists deliberate and give back an answer

Avnish Kabaj

What is my d orbital

Secret

11:21 AM

digitaltrends.com/cool-tech/chemistry-robots-twitter-experiment

chem bots doing organic reactions

Michael Harding

11:59 AM

Does anyone have any idea what the valence bond overlap diagram for HNO3 would be?

When you determine the hybridisation of all the respective atoms, one of the oxygens is Sp3 one is sp2 and the nitrogen is sp2.

The sp2 hybridisation in the nitrogen indicates that a lone pair resides in a hybrid orbital, however the lewis structure dosen't indicate this

And then when you look at the oxygen that it is bonded it to, the sp3 oxygen indicates that it has a lone electron making it a radical which it isn't

The other electrons reside in sp3 orbitals which make sigma bonds as you would expect, or lone pairs which reside in sp3 orbitals

Has this got something to with HNO3's resonance, and if so how would you draw it ...

Gaurang Tandon

what did I just see....

2

A: How does the HCl-KCl Buffer work?

Introduction Let's define buffer capacity quantitatively as $$\beta=\cfrac{dc_b}{d(pH)}=-\cfrac{dc_a}{d(pH)}$$ that is, the relationship between concentration (in equivalents) of strong base ($c_b$) or acid ($c_a$) added to a solution and its change in $pH$. From now on I'll assume we're addin...

did Vic Lineal accidentally post his research thesis on this site?

only +50 might not do justice to him imo for such a long answer...

MollyCooL

@any1 do we give ethers preference in nomenclature when no other functional group is present?

Woah woah. How many hours would that have taken?

Gaurang Tandon

12:15 PM

sorry I was fixing that post's mathjax to read what he's writteb

@MollyCooL of course we do, do you've an example?

@MichaelHarding isn't the lone pair coordinated to one of the other oxygen atoms?

MollyCooL

Like consider a compound with 2 methyl substituents attached to cyclohexane and in the neigbouring carbon -OC2H5 is attached

@GaurangTandon

Gaurang Tandon

you just treat it as an ordinary substituent, whose name will be written in the prefix; like "nitro", "ethoxy", etc.

so going by alphabetical rule, the name should be 1-ethoxy-2,3-dimethylcyclohexane

silence?

MollyCooL

Sorry was answering a comment

Wait, I shall post an image so it would be clear

Avnish Kabaj

@MollyCooL I have no idea about your new questions

MollyCooL

12:32 PM

Oh! That’s alright. Can you confirm that considering neutral molecules, BuLi is the strongest!?

@AvnishKabaj

I didnt even think bout di anions

@GaurangTandon check this link postimg.org/image/hcw6jypsd

Gaurang Tandon

@MollyCooL ohthen you'd have to apply first point of difference

one locant set is 1,1,2

the other is 1,2,2

so the first one is preferred

hence the answer is 2-ethoxy-1,1-dimethylcyclohexane

getting it?

Abcd

^^^

Gaurang Tandon

:43642585 nope, it isn't ;)

Abcd

@GaurangTandon yup realised that.

MollyCooL

Why lowest locant sum rule is both valid and invalid ? How can I know when to apply and when not to? @GaurangTandon

Gaurang Tandon

12:41 PM

lowest sum rule doesn't exist, sad reality :'(

MollyCooL

Yes thats what. But isn’t it applied here?

Gaurang Tandon

sum rule doesn't exist. it's applied nowhere in entire o-chem...

MollyCooL

Lol i was halfway through my answer on the thermo question and soumik answered it

Then what explains 1,1,2 over 1,2,2?

Gaurang Tandon

@MollyCooL first point of difference

Abcd

@MollyCooL Lowest Locant Rule

You need the lowest set of locants/

Till first point of difference

MollyCooL

12:46 PM

Is there no difference between -OC2H5 and -CH3 grp?

Abcd

Also, Set of locants rule> Alphabetisation

Gaurang Tandon

@MollyCooL no. Both are treated as substituents

@MollyCooL if your answer is different from Soumik's, then do post it.

@Abcd

3 hours ago, by Gaurang Tandon

@Abcd why did you change "Sol" to "Solution" here? https://chemistry.stackexchange.com/q/94051/5026

Abcd

@GaurangTandon Didn't get the ping

@GaurangTandon solution is better right?

Sol is just an ugly looking short cut

Gaurang Tandon

sol is actually an accepted term in colloidal chemistry; "A sol is a colloidal solution suspension of very small solid particles in a continuous liquid medium. Sols are quite stable and show the Tyndall effect" read Wikipedia to begin with

Abcd

$sol^n$ looks better

Gaurang Tandon

12:57 PM

sol is not equivalent to solution

MollyCooL

Its actually close so i didnt post.

Abcd

@GaurangTandon Oh Shit. My bad

Sorry @GaurangTandon

Please edit it bck

I didn't know about "sols"

MollyCooL

Why both as substituents ? is my question

@GaurangTandon

Gaurang Tandon

@Abcd no need to be sorry, it wasn't my question anyway; but be careful when you edit questions outside of your domain, the question was tagged "colloids"....

Abcd

@GaurangTandon Yes. will be careful from next time

Gaurang Tandon

12:58 PM

@MollyCooL because IUPAC chose them to be so...such philosophical questions are better reserved for Loong

@Abcd good

Abcd

in JEE/High School Chemistry Problems, 22 mins ago, by Abcd

@GaurangTandon @AvnishKabaj Why do $S_N1$ reactions need weak nucleophiles?

@MollyCooL Any idea^^^^!?

MollyCooL

Oh! Okay if @Loong is anywhere here, please

Weak nucleophile is not an absolute condition but even a weak nucleophile can bring about SN1 because of carbocation intermediate

Also add maybe cause im not 100% on that

Abcd

@MollyCooL Framed in a better way, "why do weak nucleophiles favour $S_N1$"

MollyCooL

Okay! Now that is like why SN1 and not SN2

For weak nucleophiles.

In SN2 the nucleophile approaches from the rear side of the Leaving group and inorder for it to get substituted it should be a stronger nucleophile than the leaving group. Makes sense?

@Abcd

Abcd

@MollyCooL We are talking about $S_N1$...

not $S_N2$

MollyCooL

1:08 PM

Yes, you asked a question stating weak nucleophiles favour SN1

Why do they? Right!?

Im trying to answer it like why they dont favour SN2 and hence they favour SN1

@Abcd

Abcd

@MollyCooL Makes sense.

MollyCooL

:)

@GaurangTandon actually ethers in reactions, without play a bigger role than methyl groups in terms of a functional group right?

hi

Hello lord!

To whom ?

1:17 PM

To you. Forget the lord. Hello !

Gaurang Tandon

@MollyCooL ofc i agree; though only loong can answer what you're asking... :(

Akash. B

@MollyCooL You mean lord shree krishna ?

Avnish Kabaj

@Abcd it's all there in clayden/Peter Sykes

MollyCooL

Yes @Akash.B

Okay @GaurangTandon

Should i post it on main or wait for Loong

Mr. Loong*

2

Gaurang Tandon

@MollyCooL you should wait for Loong

@MollyCooL Loong is definitely not his name; it's his username ;P i'm not sure if it's grammatical to say "Mr." along with a username, @M.A.R.ಠ_ಠ can help?

grammmer halp MAR ^^^

Avnish Kabaj

1:21 PM

@MollyCooL That sort of stuff is best left for chemists who are up to date with chem stuff or I'll have to Google

MollyCooL

Lol

Avnish Kabaj

My reasoning is sometimes very wrong

MollyCooL

To which question do you refer? @AvnishKabaj

Akash. B

@MollyCooL Well I am not lord krishna, I just kept his photo as my profile photo because I am a big bhakta of him

MollyCooL

Yes, i know, just said ;)

Avnish Kabaj

1:27 PM

@MollyCooL dunz man all of them

MollyCooL

You said “ that sort of stuff is best....”. Was it for the question that i asked on chat now?

Avnish Kabaj

For the BuLi

MollyCooL

Oh okay!

Masterorganic chemistry actually places ether in functional group priorities list masterorganicchemistry.com/2011/02/14/…

Gaurang Tandon

1:45 PM

@MollyCooL many resources do that; notice that "Masterorganic chemistry" also places "alkane" in that list lol

most of them are lazy to make a new table and label it as "substituents"

MollyCooL

Yes i did notice that

Maybe lol

Not again. Ugh, i post an answer and suddenly 2 pop out statin they were posted before

:((

M.A.R. ಠ_ಠ

3:03 PM

@MollyCooL linky?

There's this guideline, that, if you post an answer subjectively much later than the existing answers, you have to add something to the thread

@GaurangTandon it's grammatical to say anything in an online chatroom, one could argue

@GaurangTandon Of course it's his name

MollyCooL

Not much later 10mins max it would have been. I should rather type faster

M.A.R. ಠ_ಠ

@MollyCooL then such comments would be unfounded

@Abcd thank you for being considerate! The CV review can breathe now

Gaurang Tandon

3:20 PM

@orthocresol since you're here, please help me with this, just once, please

5 hours ago, by Gaurang Tandon

will the negative charge delocalise here? can any chemist help me here? I was taught that 3rd period elements have vacant d-orbitals, but veteran posters on Chem.SE hate vacant d-orbitals (especially excitation of electrons into vacant d orbitals during hybridization), so what is true?

Abcd

3:37 PM

@GaurangTandon Why doesn't aluminium expand its octet like sulphur?

M.A.R. ಠ_ಠ

@Abcd IIRC energy gap

Gaurang Tandon

@Abcd why does it need to?

M.A.R. ಠ_ಠ

Which I probably don't

Abcd

@GaurangTandon why does sulphur need to?

@M.A.R.ಠ_ಠ Do you still study/ teach chemistry? (Just out of curiosity)

Gaurang Tandon

@Abcd it needs to form $\ce{SO3}$?

Abcd

3:39 PM

@GaurangTandon there is no compulsion on it... to form $\ce{SO3}$

M.A.R. ಠ_ಠ

@Abcd neither. Used to study

Gaurang Tandon

@Abcd huh? then I probably don't know... ask on main

M.A.R. ಠ_ಠ

Just rationalize everything with energy

Abcd

@M.A.R.ಠ_ಠ university or school?

@M.A.R.ಠ_ಠ okay, will think about it.

M.A.R. ಠ_ಠ

@Abcd high school. University entrance exam in less than 100 days

Abcd

3:43 PM

@M.A.R.ಠ_ಠ Oh, so you must be around 19-20 years old!

@M.A.R.ಠ_ಠ So "used to" seems to imply that you won't study Chemistry in Uni?

hBy2Py

@GaurangTandon First, don't confuse total volume $V$ with molar volume $v_i$.

M.A.R. ಠ_ಠ

@Abcd I most probably will

hBy2Py

Second: the molar volume is a fixed property of each component of the system, not an overall system property like the pressure.

So, Le Chatelier just simply doesn't apply to molar volumes.

M.A.R. ಠ_ಠ

@Abcd right. 19.28

hBy2Py

It's analogous to temperature and specific enthalpy: For an endothermic reaction, adding heat drives the reaction to the right.

Just like in this case, adding pressure drives the reaction to the right.

Abcd

3:45 PM

@M.A.R.ಠ_ಠ Nice. You are young. I thought you were around 24-25.

hBy2Py

In the endothermic reaction, the products have a higher specific enthalpy

By the logic of your comment, adding energy in the form of increased temperature should result in the reaction shifting to the species with lower specific enthalpy (the reactants)

But that's exactly the opposite of what occurs

Gaurang Tandon

oh oh thanks for the details @hBy2Py.

@hBy2Py ok i understand this

@hBy2Py yep

@hBy2Py got it

@hBy2Py stuck :/

volume of ice is more, right?

M.A.R. ಠ_ಠ

@hBy2Py here's another ping

hBy2Py

@GaurangTandon At constant moles of water, yes, volume of ice is greater

@M.A.R.ಠ_ಠ pong

Gaurang Tandon

@hBy2Py ping pong ;)

@hBy2Py so, when we add more pressure, we're decreasing the volume, which means the system will try to resist the change; which means system will move towards higher volume

...so it will move towards ice?

hBy2Py

3:54 PM

@GaurangTandon The problem is here, somehow: we're decreasing the volume

But it's going to take me a bit to find the problem with the chain of logic

I would formulate it as: When you increase pressure, the system tries to resist the change, and so it shifts to the form that takes up less space, to diminish the final overall change in pressure

I think Chester Miller's comment is it, actually:

The liquid and solid, to a reasonable approximation, can be considered incompressible (i.e., dV=0) — Chester Miller 8 mins ago

When you increase the pressure, the volume change of the ice phase itself is basically nil.

A much greater relative decrease in the system volume can be obtained by changing phase to liquid water.

Gaurang Tandon

To be honest, I find this a bit complicated. At least, this is a bit tough to grasp, especially as my knowledge of chemical equilibrium solely rested on the fact "pressure increase => volume decrease"

@hBy2Py this essentially contradicts what i've been taught till now

:/

(...i've been taught till now... for gas phase equilibriums)

hBy2Py

Right, where there's no chemical reaction and no phase change

For solids, the effect of pressure on volume is usually characterized by the 'compressibility'

Which has units of, e.g., cm/Pa-cm

That's (cm of compression) / (Pa * cm of length in the direction of applied pressure)

So, an object with a length of 1cm and compressibility of 1e-6 cm/Pa-cm being compressed by 1000 Pa along its length would shrink by 1e-3 cm.

(1000 Pa pressure) * (1cm length) * (1e-6 cm/Pa-cm) = 1e-3 cm of compression

M.A.R. ಠ_ಠ

@hBy2Py that is SO damn much

Poor object

hBy2Py

Regular ice has isothermic compressibility of 0.1178 cm/GPa-cm at 0C

Hm... I don't know if this actually gets to the explanation I was hoping for. :-/

But, I'll try

Gaurang Tandon

(I really believe you'll want to add all this info into your original answer once finished)

2

Abcd

4:07 PM

Lol,

I thought you said "I really believe you"

That's the message that got 2 stars!

Gaurang Tandon

@Abcd my keyboard's enter key is next to the apostrophe, so i often press Enter prematurely; but this coincidence was spot on :P

hBy2Py

So, with an applied pressure of 1 atm, about 100 kPa, the relative compression of ice will be 0.0012%.

Basically zero

Gaurang Tandon

@hBy2Py hmmm yep

....so what were we trying to prove though?

hBy2Py

yeah, this is where it kind of crashes

I think in order to close the loop I'd have to do some massive equation-of-state calculation that, honestly, I don't really know how to do.

Gaurang Tandon

really? that much for a simple ice-liquid equilibrium? :-O

what do you think of Miller's answer below?

Abcd

4:12 PM

in JEE/High School Chemistry Problems, 5 mins ago, by Abcd

@GaurangTandon do you have any idea about the hybridisation of Carbon in dichlorocarbene and its structure?

Does any one have any idea about this^?

Gaurang Tandon

to be honest, he says "This equation is in every thermo book." but I've never seen $dH=TdS+VdP$ before :/

M.A.R. ಠ_ಠ

@GaurangTandon Wat.

Abcd

@GaurangTandon Please let me know the question.

M.A.R. ಠ_ಠ

Like, wat!

Gaurang Tandon

@M.A.R.ಠ_ಠ i mean, i really haven't. Why "wat"?

hBy2Py

4:13 PM

@GaurangTandon It's valid as far as it goes, but it doesn't really finish the argument.

Gaurang Tandon

Actually, the correct equation is $dG=dH-d(TS)=dH-TdS-SdT$. When combined with $dH=TdS+VdP$, this becomes $dG=-SdT+VdP$. This equation is in every thermo book. — Chester Miller 58 mins ago

hBy2Py

As to why a decrease in the melting point temperature leads to ice melting

Gaurang Tandon

@hBy2Py could be; i crashed at his first equation though, never seen it before

M.A.R. ಠ_ಠ

@GaurangTandon it is a wat of surprise. You must be chatting from behind Mt. Everest

Wait, you are

But if I was in China

Abcd

$dU= TdS- pdV$

This is the fundamental equation of thermodynamics

$dH = dU+ pdV + Vdp \implies dH = TdS + VdP$

M.A.R. ಠ_ಠ

4:15 PM

So Chinese people come from behind the mountains

Gaurang Tandon

@Abcd say no further i got it, thanks!

M.A.R. ಠ_ಠ

I like how I can see bare MathJax. It's like chat is naked.

hBy2Py

@GaurangTandon Best I can do is to change the logic a bit: when the applied pressure increases, the system changes in whatever ways it can to reduce the overall volume

Because a response that reduces volume results in a smaller pressure increase than if the volume had remained strictly constant

In the water/ice system, one of the ways the system has available to it to reduce its volume is melting, since the liquid specific volume is less than the solid specific volume

Gaurang Tandon

hmmm, it still seems to contradict my education about, say N2 + 3H2 -> 2NH3; i was taught increasing the pressure would shift the equilibrium rightward

hBy2Py

Right.

M.A.R. ಠ_ಠ

4:21 PM

@GaurangTandon It does

JavaScriptCoder

@GaurangTandon its le chats

hBy2Py

In that system, the mechanism available to decrease the volume of the system is reacting to form fewer moles of products than of reactants

Gaurang Tandon

I think I now understand what you're saying

M.A.R. ಠ_ಠ

@JavaScriptCoder no, it's die schats

JavaScriptCoder

@M.A.R.ಠ_ಠ eh, i'm a french scholar also, not just a german scholar

M.A.R. ಠ_ಠ

4:22 PM

France sucks. Germany is awesome.

Gaurang Tandon

yup, i'll digest it a few more times, @hBy2Py but it seems to be solid. thanks! :D

JavaScriptCoder

@M.A.R.ಠ_ಠ whoa bias

M.A.R. ಠ_ಠ

@GaurangTandon no, it melts

hBy2Py

Son las charlas, mi amigos.

JavaScriptCoder

Spanish?!

now spanish really sucks

@M.A.R.ಠ_ಠ and I can agree

Gaurang Tandon

4:23 PM

@M.A.R.ಠ_ಠ ?

M.A.R. ಠ_ಠ

Spanish is good.

Just to disagree

JavaScriptCoder

?!

You're no fun

M.A.R. ಠ_ಠ

SE hates fun

JavaScriptCoder

Just wondering, being Iranian, do you speak arabic?

hBy2Py

@M.A.R.ಠ_ಠ SE is for teh grumps

M.A.R. ಠ_ಠ

4:25 PM

@JavaScriptCoder A little, but that's because they teach us, not that we learn it from the street

JavaScriptCoder

i see

M.A.R. ಠ_ಠ

My mother tongue is actually Azeri Turkish

JavaScriptCoder

is arabic good?

oh

M.A.R. ಠ_ಠ

@JavaScriptCoder we have been made to believe it's unnecessarily complicated

Happens to any language shittily taught

JavaScriptCoder

lol

lets just say my french/german teachers can teach well

Gaurang Tandon

4:26 PM

@GaurangTandon No. The decrease in the total volume of the system is the Le Chatelier response to the increased pressure, and the melting phase change is one of the mechanisms available to the system to decrease its volume. — hBy2Py 6 mins ago

M.A.R. ಠ_ಠ

Persian is historically closer to Hindi or Sanskrit

Gaurang Tandon

@hBy2Py do please add this to your answer. I'm sure I wasn't the only one confused by the first version of your answer

hBy2Py

Can do

JavaScriptCoder

@M.A.R.ಠ_ಠ Persian? Did you mean turkish as that's what you were talking about?

hBy2Py

4:43 PM

@GaurangTandon Edits made; I don't see any point to including that long ramble on compressibility

The analogy to the change-in-moles reaction was probably good to put it, though.

Hopefully

Loong

No, real world physical constants are mostly read-only. — Ivan Neretin 3 hours ago

:-|

Gaurang Tandon

5:06 PM

@hBy2Py yep, looks perfect; +1

MollyCooL

I dont know how to tag a previously sent message. Help!

@Loong if you’re here, did you read the question in which i tagged your username? If no, I shall put my question up, @GaurangTandon suggested that you would be able to answer it

hBy2Py

5:29 PM

@MollyCooL If you hover over the message you want to tag, look for a little right-angle arrow button at the far right of the message

Click that, and it adds something that looks like :28374748 to your typing box

That's how it tags/links to the other message

MollyCooL

Oh! But when i used it, it just tagged the user i tried to reply and not the message. Let me try again

@hBy2Py Thank you

It just tagged you..

Abcd

5:47 PM

2 hours ago, by Gaurang Tandon

5 hours ago, by Gaurang Tandon

2 hours ago, by Gaurang Tandon

5 hours ago, by Gaurang Tandon

will the negative charge delocalise here? can any chemist help me here? I was taught that 3rd period elements have vacant d-orbitals, but veteran posters on Chem.SE hate vacant d-orbitals (especially excitation of electrons into vacant d orbitals during hybridization), so what is true?

@GaurangTandon Well, its possible according to me.

In march there's a section on $p\pi - d\pi$ bonding

He discusses about "Ylids" and acknowledges $p \pi - d\pi$ bonding

hBy2Py

6:01 PM

@MollyCooL When a message has a tag in it, there's a different right-angle arrow that appears on the left-hand side of the message. If you click that left-side right-angle arrow, it'll take you to the tagged message.

M.A.R. ಠ_ಠ

7:47 PM

@JavaScriptCoder I was just talking about languages primarily spoken in Iran

Our Turkish is unfortunately getting closer and closer to extinction

It's mystifying

Origins probably Uighur

Uyghur

Whatever

orthocresol

8:39 PM

@GaurangTandon look up 'negative hyperconjugation'

hBy2Py

9:27 PM

@ortho, did something happen to the 'canonical Q&A' post on Meta? I'm having trouble finding it.

JavaScriptCoder

9:48 PM

@M.A.R.ಠ_ಠ don't make it go like latin did

orthocresol

@hBy2Py This one?

9

Q: Canonical Q&A – Proposing A Patronage System

The below is a draft proposal of a patronage concept for encouraging authorship of canonical Q&A posts. Comments on it are welcomed as non-RFCP answers. We get a lot of questions on Chem.SE that are variations on common themes: simple acid-base equilibria, definition of rate constants, etc. T...

discussion bounty canonical-questions

Or this one?

20

Q: The Giant List of Duplicates

For those who haven't been frequenting meta, this post has been suggested numerous times. The intention is to collect together good questions with good answers which can be used as duplicate targets. While this is obviously a mammoth task, there is no stipulation that it is (or ever will be) exha...

discussion faq-proposed big-list

hBy2Py

10:18 PM

@orthocresol Ahh, it was the duplicates question, not the canonical

Nicely explains why I couldn't find it.

Thanks

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