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11:00 AM
@Martin-マーチン I like it
 
@Rubisco I like it too
 
user228700
Aaah! @DHMO: No, I have no idea what u mean by "hollow elevtrons"
 
@orthocresol does your country start from A-M ?
@Kaumudi look at your diagram
some electrons are filled
 
user228700
OK..?
 
some electrons are hollow
 
11:00 AM
?
 
what does that mean?
 
user228700
What do u mean by filled?!?!
 
$\blackcircle$
 
alright
 
11:01 AM
If y'all be eclipsed, the you can enforce it... @rubi @ortho
 
@Kaumudi what is the bond between the left O and the N?
 
@Martin-マーチン Eclipsed? o.o
 
user228700
Ohh! Lol. It means nothing! I just drew them like that! I was wondering if these terms were chemical terms! Hollow electrons :-P
 
c'mon... i made it obvious with da link
 
user228700
11:03 AM
@DHMO Uhh, a single bond.
 
@Kaumudi then you need to assign a formal charge to the left O and the N
 
@AaronAbraham please
don't put the answer here
 
No.... I'm missing something here.
 
and it isn't the answer anyway
 
11:04 AM
What's the question?
 
@AaronAbraham please don't put the answer here
 
That's an answer?
 
The answer is all over the internet @DHMO, if you're looking for the Lewis structure.
 
you got the answer to the wrong question but you're still trying to post an answer
@Rubisco yes but I don't expect @Kaumudi to search the internet
 
I wasn't posting an answer...
 
11:05 AM
then what were you posting?
 
user228700
@DHMO Yeah, I do :/ How about we talk about this t'row? I feel like my brain is starting to die with all this Chemistry. I'm gonna go finish some Math and Phy before doing ONLY Chem. t'row. OK..?
 
@Kaumudi alright
 
A picture ^_^
@DHMO
 
user228700
@DHMO Thanks :-)
 
@AaronAbraham very funny
@Kaumudi you're welcome
 
11:06 AM
I know right :D
-_-
 
user228700
@DHMO You're one of the only few who says "Welcome" ^.^
 
Welcome......to The Periodic Table...
 
user228700
@AaronAbraham Lol, nice try :-P
 
!!greet/@Kaumudi
 
Welcome to The Periodic Table @Kaumudi! Here are our chat guidelines and it's recommended that you read them. If you want to turn Mathjax on, follow the instructions in this answer. Happy chatting!
 
11:07 AM
!!beer
 
@Martin-マーチン would you happen to know why CrO3 is C3v instead of D3h? The angle of O=Cr=O is 113 degrees
 
user228700
OMG this is awesome! :-O
 
Hi! I'm the almighty bot of ChemistrySE's main chatroom. /!\ If you find me annoying, you can ignore me by clicking on my profile image and chosing "ignore this user" /!\ You can find my documentation here.
 
11:08 AM
@Chembot, Ich dachte, dass Sie bei der g-Block waren.
 
@AaronAbraham Wo ist das "o"?
 
@Martin-マーチン Oktoberfest's over....get sober ;P
@DHMO Which omega?
 
I'm a chemist... I have no time to be sober.
3
 
@AaronAbraham Chemobot
 
Ah...you got me there....you're a very observant molecule...
 
11:09 AM
i'm in every eye...
 
ohhh... I know what we have not done in quite a while...
 
@Martin-マーチン Take my star!
 
13
Q: Brown stains on skin after working with Tollens' reagent

Prakhar SankrityayanI was working in the lab preparing Tollens’ reagent. When I came back home, I observed that my fingertips were brown, and I tried to wash it with soap several times but it didn't work. It has been a day and they don't seem to go. What may have been the reason? Is it permanent and how can I get...

 
Ah, @Jan 's beautiful answer (wipes a tear)
 
11:11 AM
That thing has enough upvotes as it is...
secretly envious
 
I know how you feel seal....
 
non-hypervalent molecules!!!!!!!!1!1111!!!!
 
49
Q: The secret to getting a massive reputation is ___

John Rennie... obviously to answer simple questions about everyday life: Why are dishwasher washed glasses "squeaky clean"? Not that I wish to be ungrateful, but I put far more effort, and found it far more interesting, to write an answer explaining where the idea that black holes are gateways to other un...

 
Well if it came from @JohnRennie I'm taking it!
 
@orthocresol what a beautifully bad answer, too, though.
 
11:13 AM
@Martin-マーチン flunderbar ;)
 
=*_*= (Learnt this one from Jan :P )
 
@orthocresol or just OC ;)
 
Indeed.
 
but obviously the easy ones give the highest score ;)
Y u no tell me gold is gold eh plz
 
11:17 AM
Das ist wahr
(I'm practicing, so don't chide me...)
 
6
Q: Mysterious upvotes

Ivan NeretinI'm talking about one recent question: Has a carbon compound ever been found having an ionic bond? The question is quite trivial, so is my answer, and I expected it to get a modest sum of 2-3 upvotes over time. But 12? Flattering as it is, this just doesn't feel right. What kind of flashmob is t...

 
132
Q: Why is gold golden?

tschoppiBulk gold has a very characteristic warm yellow shine to it, whereas almost all other metals have a grey or silvery color. Where does this come from? I have heard that this property arises from relativistic effects, and I assume that it has to do with some distinct electronic transition energies...

 
what the
 
Yep, C'est la vie.
 
oh yes, I remember this.
 
11:20 AM
that thing is memorable because of the way it skyrocketet
 
I think I wasn't around then.
 
@Martin-マーチン Are you a Physikochemiker?
 
no. I work in computational chemistry
 
Ouch...
Was going to ask you 'bout this:
1
A: Why does the BET equation take into consideration a multimolecular-layer, even though it deals with Chemisorption?

pH13 - Yet another PhilippMy book (G. Wedler, H.-J. Freund, Lehrbuch der Physikalischen Chemie, 6. Edition ... obviously a German book on physical chemistry) begins with the following, when introducing the BET equation. Besonders bei der Physisorption beobachtet man, dass häufig Adsorption in mehreren Schichten überei...

 
11:38 AM
121 voters already.
 
me included ;)
 
@orthocresol all the suspense...
 
@Martin-マーチン Already more than double of last election :)
Lots of voters I've never actually seen around here.
 
yeah, but it's also about double the number of eligible voters
 
We're not even 24 hours in
Well, no suspense about the first slot :D
 
11:41 AM
@Martin-マーチン and I will not be here when the results come in :-|
 
The second slot is a toss up between everybody else
 
@Loong in what part of the world are you going to be? Is there even a part without the internetz?
@orthocresol I only know who I voted for ;)
 
@Martin-マーチン first Brussels, then London
 
i'm fairly certain they have the internetz
 
are you sure?
 
11:44 AM
should have the answer
wait... how do you make the logo appear?
 
@Martin-マーチン yes, I should ask there
 
aha! Url not shortlink
 
"Can I buy an Interwebs in London?"
 
> Does the internetz exists in london and BRUSSels? Urgent halp plz!
 
They even had internet in the Serengeti. I wasn't so sure whether I should like that or not.
 
11:48 AM
they recently installed wifi on Mt Fuji
 
@Martin-マーチン sacrilege!
 
yeah... not sure if only for tourists... and pretty certain they have some kind of benefit from that ;)
iirc there already was a regular post office on top of the mountain
it's only logical to go one step further
 
ok, I like the post office on the Zugspitze
 
on the train tip?
 
@Martin-マーチン by the way: german.stackexchange.com/q/32433/9551
 
11:55 AM
mwahaha
 
12:47 PM
Are the distances accurate in terms of proportion?
 
@DHMO I don't see any . . . Oh then. No.
The positive is really small.
It's a nucleus.
Most of it is empty space.
 
@Rubisco how would a diagram in proportion look like?
 
Prolly.
 
@Rubisco I see, thanks
because those diagrams often have me wondering how the electron can stabilize the structure
 
Or it'd look like a lot of tennis balls. Since that's prolly what an atom looks like
 
12:50 PM
since the positive charges are so close
 
@DHMO It's not the electron, but the delocalization that stabilizes
 
@Rubisco you know, the delocalization of electron
also, those enthalpy diagrams that have separate atoms are another form of misleading
 
Well, I never got so philosophical as to wonder about the exact reason for why delocalization does that
But if the nuclei are so close, the electrons are even closer.
 
delocalized electrons don't have a location per definition
hence no distance
 
The nucleus isn't standing still either
 
12:53 PM
but they aren't delocalized
I'm disappointed that there isn't even a note saying the atoms do not actually become separate in a reaction
!!img/para-aminobenzoic acid
 
@DHMO I meant that literally, not according to its technical use
 
@Rubisco you mean the vibration due to temperature?
 
@DHMO Yes, but the probability of an electron being in the space between the two atoms is high
@DHMO ?
 
The nucleus is vibrating because of the temperature
@Rubisco You know, a covalent bond contains two electrons as well
I believe you can treat them as covalent bonds
 
1:01 PM
IIRC it wasn't because of temperature
 
Then why?
 
Don't remember
That's physics anyway
 
I believe it is because of temperature
covalent bonds contain two electrons in proximity as well
but the decrease in potential energy (due to QM effect) outweighs the increase in potential energy (due to Coulombic repulsion)
What is stopping the electrons from crashing into the nucleus?
@Rubisco doesn't the 1s electrons lose potential energy by becoming closer to the nucleus?
 
1:29 PM
0
Q: Discrpecancies between specific heat of vaporization of water and enthalpy of formation of water and steam

DHMOAccording to Wikipedia, the enthalpy of formation of water is $-285.8$ kJ/mol while the enthalpy of formation of steam is $-241.818$ kJ/mol, implying the following: $$\ce{H2O(l) -> H2O(g)}\mbox{ (}\Delta H=44.0\mbox{kJ/mol)}$$ Let us derive the enthalpy of the above reaction using the specifi...

 
1:57 PM
why is ionization (deprotonation) of acids endothermic?
 
2:12 PM
4
Q: Iodine test for Starch

MattThe starch and iodide test is to detect amylose, a polysaccharide. We add an iodide solution to a sample and observe a color change with the starch; it turns dark blue. While researching information online, I understood that $\ce{I_{2}}$ is not soluble in water, hence it needs to react with iod...

 
2:22 PM
2
Q: How does sulfuric acid react to heating?

Ydob EmosHow would H2SO4 react to heat ? I assume that it would form toxic sulfur (di/tri)oxide, but I can't find any information on this. I'm concerned about fire hazards specifically, so assume very intense heating and very low concentration.

How is the other answer getting more upvote than mine?
 
2:56 PM
@Mart, @penta, @ph13, any thoughts for @Melanie?
9
Q: Computational chemistry: research in organic chemistry?

Melanie ShebelI was wondering what research I could do that combines computational chemistry and organic chemistry. For the past three years, I've been using Amber and Gaussian (in hopes) to identify and understand trends in intramolecular interactions of dipeptides. = Organic structure but really computation...

@DHMO It's even worse when there are enormous equations cutting across the page. I have yet to find a journal whose method for indicating text continuation isn't useless and confusing.
 
@hBy2Py people really don't care about formatting
Carbon trioxide (CO3) is an unstable oxide of carbon (an oxocarbon). Three possible isomers of carbon trioxide, with molecular symmetry point groups Cs, D3h, and C2v, have been most studied by theoretical methods, and the C2v state has been shown to be the ground state of the molecule. Carbon trioxide should not be confused with the stable carbonate ion (CO32−). Carbon trioxide can be produced, for example, in the drift zone of a negative corona discharge by reactions between carbon dioxide (CO2) and the atomic oxygen (O) created from molecular oxygen by free electrons in the plasma. Another reported...
If the enthalpy of formation of CO3 is −675.23
then why is it so unstable?
 
@hBy2Py aren’t there enough answers?
 
@pH13-YetanotherPhilipp <shrug> Only if they cover everything you'd've thought of.
 
3:30 PM
@hBy2Py she also made it into computational chemistry daily :)
 
@AaronAbraham what it the pronunciation of the first "e" in "unbefleckt"?
it should be a schwa right?
 
The close-mid front unrounded vowel, or high-mid front unrounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨e⟩. The close-mid near-front unrounded vowel, which differs from its front counterpart in that it is somewhat centralized (but still more front than central [ɘ]), is in practice sometimes transcribed with the symbol ⟨ɪ⟩. In narrow transcription, it is equally correctly transcribed with ⟨ɪ̞⟩, ⟨e̠⟩, ⟨ë⟩ or ⟨ɘ̟⟩ (this article uses ⟨e̠⟩). The IPA prefers the terms "close" and "open" for vowels...
 
@pH13-YetanotherPhilipp :o I thought the ge- and the be- should be pronounced as a schwa
 
@DHMO where is the ge- in unbefleckt?
 
@pH13-YetanotherPhilipp I mean in general
so in general be- is that vowel?
 
3:36 PM
and do we talk about German? the word looks like, but I might be wrong oô
 
yes, we are talking about German
== English == === Etymology === From Middle English be-, bi-, from Old English be- ‎(“be-”), from Proto-Germanic *bi- ‎(“be-”), from Proto-Germanic *bi ‎(“near, by”), ultimately from Proto-Indo-European *h₁epi ‎(“at, near”). See by. Cognate with Dutch be- ‎(“be-”), German be- ‎(“be-”), Swedish be- ‎(“be-”). More at by. === Pronunciation === IPA(key): /bɪ/, /bi/ === Prefix === be- (rare or no longer productive) By, near, next to, around, close to. beleaguer, bestand, beset, besit (rare or no longer productive) Around; about. begather, belay, belook, bestir, belive, besmell, bewrap (...
@pH13-YetanotherPhilipp here it uses the schwa instead
 
yes
 
@pH13-YetanotherPhilipp That's not hard to do.
@hBy2Py I will take a look but I am no organic chemist as you know.
 
@pentavalentcarbon but I think it’s nice, nonetheless
 
3:40 PM
I agree, it is. Computational chemistry Jan really likes social media. If you want to get in all you have to do is post to Twitter with #compchem.
 
xD
maybe next time
 
@pH13-YetanotherPhilipp which vowel is used?
 
@DHMO ə seems better
 
@pH13-YetanotherPhilipp in 02:21 which vowel do you hear?
 
maybe like /ɛ/ ...
 
3:50 PM
alright
she's an american, so whatever
 
but the ə is quite similar
 
@pH13-YetanotherPhilipp what do you mean?
how can the two vowels be similar
 
in german, there are five vowels. a e i and o ... everything else is intonation, duration, ...
 
what
The phonology of Standard German is the standard pronunciation or accent of the German language. It deals with current phonology and phonetics as well as with historical developments thereof as well as the geographical variants and the influence of German dialects. While the spelling of German is officially standardised by an international organisation (the Council for German Orthography) the pronunciation has no official standard and relies on a de facto standard documented in reference works such as Deutsches Aussprachewörterbuch (German Pronunciation Dictionary) by Eva-Maria Krech et al., Duden...
ignoring duration, you still have /i/, /e/, /ɛ/, /y/, /ø/, /ə/, /a/, /u/, /ɔ/
I don't believe /e/ vs /ɛ/ is intonation, duration, ...
at least you forgot ö and u and ü
 
those are no vowels but "Umlaute", but thanks for mentioning. ;)
 
3:59 PM
those are distinct vowels in linguistics
 
You might want to ask this question on german.se. I guess you will get nice answers.
 
@pH13-YetanotherPhilipp in german, there is one vowel: a. everything else is vowel height, vowel roundedness, vowel frontness, and vowel duration
@pH13-YetanotherPhilipp I guess we have a different definition of "vowel"
 
maybe you meant "there are five letters which represent vowels"
 
maybe
or most probably
I’m by far no linguist
from what I was hearing in the song, I was thinking of similar sounds and then looked up here what IPA sign could be the next best.
 
4:04 PM
@pH13-YetanotherPhilipp I see
why are cells that use zinc as negative electrode not-rechargeable?
Silver(I) oxide is the chemical compound with the formula Ag2O. It is a fine black or dark brown powder that is used to prepare other silver compounds. == Preparation == Silver oxide can be prepared by combining aqueous solutions of silver nitrate and an alkali hydroxide. This reaction does not afford appreciable amounts of silver hydroxide due to the favorable energetics for the following reaction: 2 AgOH → Ag2O + H2O (pK = 2.875) US patent 20050050990 describes the preparation of Ag2O with properties suitable for use as a fine grained conductive paste filler. == Structure and propert...
@pH13-YetanotherPhilipp silver (I,III) oxide ?
 
> Not to be confused with silver(I,III) oxide, used in silver-oxide batteries.
 
and what exactly is the question?
 
is it really I,III?
 
4:14 PM
@pH13-YetanotherPhilipp what the heil... ok
 
"heil" is German for "hell".
 
absolutely not
 
didn't imply so
heil means hail
 
@DHMO But that doesn't make the slightest sense
 
but it has this ugly 3rd reich connotation which I don’t like
 
4:16 PM
@Rubisco it wasn't meant to
 
THEN BURN IT
 
it's just a substitution
 
Your whole chat message doesn't make sense.
After "what the", you're supposed to add an expletive.
 
@Rubisco when you substitute "flipping" for "fucking", do you actually mean "flipping" as in turning?
 
That's another story.
 
4:19 PM
A silver-oxide battery (IEC code: S) is a primary cell with a very high energy to weight ratio. Available either in small sizes as button cells (where the amount of silver used is minimal and not a significant contributor to the product cost), or in large custom designed batteries where the superior performance of the silver-oxide chemistry outweighs cost considerations. These larger cells are mostly found in applications for the military, for example in Mark 37 torpedoes or on Alfa-class submarines. In recent years they have become important as reserve batteries for manned and unmanned spacecraft...
 
"flip off" has a closely related meaning
 
can this battery be recharged or not?
my book says it cannot be recharged
 
Today is the international day for being irrelevant, innit
Let's be irrelevant then: Cathode rays are awesome.
 
Enzymes are the worst.
 
ᕙ(⇀‸↼‶)ᕗ
 
4:24 PM
@hBy2Py I thought about that question as being too broad and primarily opinion based and would have closed it. Why didn’t that happen, btw?
 
Which?
 
1 hour ago, by hBy2Py
9
Q: Computational chemistry: research in organic chemistry?

Melanie ShebelI was wondering what research I could do that combines computational chemistry and organic chemistry. For the past three years, I've been using Amber and Gaussian (in hopes) to identify and understand trends in intramolecular interactions of dipeptides. = Organic structure but really computation...

 
That's the thing, it should be closed...it falls under the category of a soft question
 
Give it a couple of days, then VTC it.
That's what we do to soft questions we like.
They get the input needed and then later, rubbish answers are prevented.
 
4:29 PM
@pH13-YetanotherPhilipp -1 doesn't look evil enough
 
Facepalm
 
I don't think it's that bad.
 
You've been online too much then. You should get a sleep or a swim or whatever you seals do
 
It's not opinion-based.
 
4:31 PM
It's TB.
 
If anything, it might be too broad
 
Tetra-Boron, I mean
 
That's debatable, I'm refraining from VTCing. Not saying that I think it should remain open I just don't have much of an opinion either way.
 
@orthocresol Debatable? "What are some things" are always TB.
 
If you say so.
 
4:33 PM
Louder please.
 
She is fortunate there are experienced people here, but it's already attracted some...nonsense.
 
The computational chemist has spoken.
 
The perfect one to answer would be Martin, he's a trained computational organic chemist.
 
@pH13-YetanotherPhilipp Probably because a 5k user (hi!) jumped on it and answered at length, instead.
 
And then there's this guy...
 
4:37 PM
probably ^^
 
@hBy2Py Damn rep farmers
 
@Rubisco Yeah, that's me. Shameless what I'll do sometimes.
 
Close it if you guys want. I just thought it has value
 
@hBy2Py Go sit in the corner, and think about what you did.
 
@orthocresol I agree, I wouldn't argue if it got closed. I just saw a chance to share some things I'm excited about and took it.
A chat invitation might well have been more appropriate.
 
4:38 PM
@hBy2Py I know many people who are interested in this exact area.
 
It does have value, the nonsense is currently contained to the comments.
 
It's good if they have something valuable to see, at the very least.
 
@orthocresol Closure doesn't invalue invaluable valued values or whatever. It will just stop additional nonsense from being added.
 
I never said, that I don’t like the question. I’m happy about every question that is comp chem related. ^^
 
That's biased.
 
4:40 PM
Then close it. It's not like I have a veto.
 
Can anybody copy? Philipp is biased
 
No, we're all pretty clearly in agreement here atm...
 
He just gave me another reason to bash him
 
@pentavalentcarbon Yes, it's such an agreementful atmosphere, it's . . . ugh
 
4:41 PM
@pH13-YetanotherPhilipp Never execute other users in a naked shell
@Rubisco is that going to be your mod philosophy if elected? Bring discord wherever possible?
 
@hBy2Py Divide and conquer
Although I could prolly conquer even without dividing.
Or at some cases multiplying, even.
 
Conquering is pretty easy in the face of ennui.
 
@hBy2Py $ su -l
 
Jokes aside, my mod philosophy is null. I'm not a philosopher.
I'm just gonna burden myself to get more things done in the meta.
And if I don't get elected, nothing will change. Nothing should change.
I didn't come here, I didn't help here to get a mod position.
 
<nod> I feel like we have a really good slate of candidates -- dedicated, will do well if made mod, but will still be good community members if not made mod
 
4:46 PM
@Rubisco $\large \textbf{If you say so}$
 
-1
Q: 2005 Kia Amati things coming on randomly without key in car, why

Sharon GlennI had a battery replaced on my 2005 kia amanti and now my lights Will flash on and off or the doors will lock and unlock , or seats will change positions day and night without me or key in car

Haunted thingy of the day
 
@Rubisco Wow, that post got killed fast.
 
'tis what we deal with everyday
Prolly it got Oded'd.
 
Decent question for auto maintenance.SE, I'd think.
Totally absurd on Meta.SE though, definitely.
 
5:27 PM
I wonder who leads now.
And who's second.
And third.
I'm prolly third.
Loong is first.
Maybe Penta is grabbing the lead too. That's an enemy not to be underestimated.
Ouch, should've ended that with a preposition.
 
5:39 PM
Meow @Wild
Have you voted?
 
Of course, we are conspiring to make animals great again :)
 
Hey no, that's me
You're Clinton.
 
You're Trump?
 
Or Cruz. Can't bother to check
 
Oh well, I guess your reputation is ruined.
By that tape
 
5:42 PM
@orthocresol I'm Prompt. Big difference
 
6:15 PM
Hello :)
 
@9-BBN hi
 
In $\ce{Pd}$ cross coupling, if you use for example $\ce{Pd(OAc)_2}$ as catalyst with ether solvent and some $\ce{Et_3 N}$ how is it possible to obtain $\ce{Pd^{(0)}}$ ?
solvant*
 
6:31 PM
@9-BBN Do you mean in the last step, when you eliminate R'-R from R'-Pd-R?
 
6:50 PM
@9-BBN The Pd(II) pre-catalyst is reduced to Pd(0) in situ. The amine is oxidised to the iminium ion.
 

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