The Periodic Table

12:05 AM

7

For example, mercury (I) is $\ce{Hg2^2+}$ and not $\ce{Hg+}$. What causes the stability in covalently bonded $\ce{Hg}$ ions?

orthocresol

@BountyHunter I flagged the answer on that question as NAA. It passed the review, apparently. :/ I wonder if I should abuse my newfound mod powers to delete it.

Nilay usually gives good answers, but this one is just off the mark...

hBy2Py

2:51 AM

@Fl.pf. Good for the 'proper wavefunction based' theories; doesn't touch DFT, though.

Martin - マーチン

3:57 AM

@orthocresol @hBy2Py Synonyms are not really that literal to be taken here. It is perfectly fine to map a subset to a larger tag in order to keep them thematically together. In this example I decided it is well worth it since every question with TLC will also be tagged chromatography. In the end TLC doesn't add anything of value. The synonym, however, will make it clear that when you enter tlc as a tag you'll choose chromatography. It's just a matter of convenience.

If we ever get enough questions specifically about TLC, we would need to go through the relevant questions one way or the other. Deleting the synonym link is a matter of seconds, that does not prevent us from creating it as a real tag again.

Martin - マーチン

4:58 AM

@hBy2Py But everybody know that pi is exactly one... I am confused...

Fl.pf.

7:33 AM

@h2By2Py yes for DFT I always recommend the Koch & Holthausen, A Chemists guide to DFT

or, of course, the bible (well our bible at least), the "pink book"

Martin - マーチン

@Fl.pf. Unfortunately there is nothing better...

Fl.pf.

yeah well, when you have to really work with that stuff no such book will be adequate

but just to learn the basics its ok. And in the Szabo&Ostlund there is even a little QC-program to code (have fun though, its in F77 and sadly the integrals are added explicitly and are not calculated, which makes the whole thing kind of useless...)

Martin - マーチン

well, I don't like S&O either, it focuses extremely on the mathematics of a problem without spending much time on why this is important from a chemists point of view

a route that K&H goes the other way, they are pulling things out of the hat without going much into detail

Fl.pf.

yeah, its a book about computer chemistry more than about QC in general

Martin - マーチン

plus the dft guide is quite outdated

the newest and probably most important developments are simply not in there...

I wish Grimme would write a book on DFT

Fl.pf.

7:48 AM

I don't know if I would want that

Martin - マーチン

For a decent introduction I recommend Jensen

Why not?

Fl.pf.

I don't know, I had to work through some of his papers.. :)

nah, hes a cool guy

brutally smart and sharp

would probably write a good DFT book

Martin - マーチン

well his papers are quite a piece, that's true

I am still extremely puzzled how Holthausen came to write a book on DFT... apparently that wasn't his strong suit

Are you going to WAToC this year?

Fl.pf.

no

I'm at the ESQC, so no time for watoc

i'll go next time :D

Martin - マーチン

Hmm, but that's two weeks later...

but ESQC sounds really incredible...

Fl.pf.

7:58 AM

well, you kinda do what your boss tells you to do :)

Martin - マーチン

sure. We'll see where the next WAToC is in three years... I guess Asia would be good again to keep it travelling around the globe.

Fl.pf.

yap

munich isnt that interesting anyway

Martin - マーチン

Well, for Europeans... Asians sure have a different opinion

For me it's a nice opportunity to go home for a while...

Fl.pf.

good point

Martin - マーチン

I also attend STC this year... works in good harmony

Fl.pf.

8:12 AM

full schedule ;)

doing that the next time aswell

Martin - マーチン

well, that comes around more often though... but it really isn't a good reason for me to board a plane..

Fl.pf.

no it isnt

Martin - マーチン

well, actually nothing is a good reason to board a plane...

Fl.pf.

I would board a plane if it would fly me to the carribbean

Martin - マーチン

if it's one way...

Fl.pf.

8:23 AM

yeah

orthocresol

9:03 AM

-5

Q: What's beyond the universe?

A lot of people have been thinking about this- but do we really have an answer? No one really knows- but a few guesses would be nice! :) Recent finds have found alien life- are there really aliens, or are the 'alien bodies' a hoax?

atmospheric-chemistry

Fl.pf.

question of the day

Martin - マーチン

@orthocresol homework everyday-chemistry reaction?

orthocresol

@Martin-マーチン tlc

Martin - マーチン

Hahaha!

hmmm... somehow I get the same results from data.se as yesterday for the reaction tag --.--

orthocresol

It only updates weekly, on Sunday morning UTC, so we are in for a bit of a wait.

:(

Martin - マーチン

9:27 AM

I just went through the questions again, and there are only four remaining. Let's discuss the over at chat.stackexchange.com/rooms/55978/… @orthocresol

Hexacoordinate-C

10:16 AM

@orthocresol OK I understand

So in this chat when it'll happen I'll copy/paste links and you'll remove the questions?

orthocresol

@Hexacoordinate-C Delete if it's a really useless question, but if there's something useful we will try to salvage it by editing.

Hexacoordinate-C

Ok

We can remove them all if we are upset :p

orthocresol

10:32 AM

Let's just remove all homework while we are at it. Nothing of value would be lost.

-1

Q: ATOMS MOLECULES AND STOICHIOMETRY

IN THE ABSENCE OF A CATALYLST ,AMMONIA BURNS IN EXCESS OXYGEN TO PRODUCE STEAM AND NITROGEN WHAT IS THE VOL UME OF OXYGEN REMAINING WHEN 60 CM3 OF AMMONIA IS BURNT IN 100CM3 OF OXYGEN ,ALL VOLUMES MEASURED AT THE SAME TEMPERATURE AND PRESSURE

physical-chemistry

Martin - マーチン

@orthocresol close first!

Fl.pf.

Captain Caps and the Shift crew have arrived

3

Martin - マーチン

@Hexacoordinate-C You can always also use the common flags, like VLQ, NAA, Close, to get a community vote in. It's easier to decide whether a question should go or not, when the community deemed it off-topic. In the other chat we can discuss cases to move along more quickly and maybe get some salvaging done. Just have a quick read-through of the last hour or so and you get the idea.

If you find something you want to talk about, but you think it's not worth a meta discussion, just post it there and we all can have a look.

heather

11:30 AM

if has a moment, with this question, now that I've narrowed it down, someone still commented that it was way too broad, but I'm not sure why - it's an equipment request for a specific situation.

is there anything i can do to improve it?

Martin - マーチン

11:48 AM

Answering this is the stuff of a Ph.D. thesis. If it would even fit in that space. This is way too broad and speculative for a Stack Exchange style Q&A. Sorry...! — hBy2Py 9 hours ago

you mean this comment?

heather

yeah.

Martin - マーチン

hmmm. I read your question, and I think it is well laid out and there is not much more you can do. I'll reopen it, as it has already 4 votes on it.

However, the answer to your question is basically already given in the comments

It's highly unlikely you'll be able to detect a molecule without destroying it.

heather

okay. thank you for reopening. i guess i'll keep reading to see if there's another way.

hBy2Py

@heather Also, does it have to be DNA bases?

'gas-phase cytosine' is almost certainly a fictional thing, at least if you want it to be useful as a nucleotide once it gets where it's going

The four bases will almost certainly degrade well before reaching the temperatures required to volatilize them.

It's an interesting hypothetical scenario, but AFAIK completely unrealizable in practice.

(@Mart)

Martin - マーチン

yes. that's pretty much the answer. I think we can be more lenient on the too broad thing.

M.A.R.

12:02 PM

Afternoon peeps

How goes it?

Martin - マーチン

Good evening

@M.A.R. I'm hungry, bring me food!

M.A.R.

!!food

!!dinnerz

!!vending-machine

!!flip/YOURSELF YOU STUPID BOT

Chemobot

(۶ૈ‡▼益▼)۶⅄O∩ᴚSƎꞀᖵ ⅄O∩ S⊥∩ԀIᗡ ᗺO⊥

hBy2Py

Heh. Good MORNING, all you eastern hemisphere chumps.

heather

@hBy2Py well...i thought the gas-phase part only to "dispense" the gas, and then recondense it.

hBy2Py

12:06 PM

@heather <nod>

I know

I suspect they won't recognizeably be DNA bases after the evaporation

Though...

Maybe using a method like MALDI...

!!wiki/MALDI

heather

i have to go now for school...i'll read about MALDI...could we maybe talk later?

hBy2Py

Bah, what's that command?

!!help

Chemobot

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.

hBy2Py

<nod>, have to go myself.

Ping me whenever, I'll respond when I can.

heather

thank you.

hBy2Py

12:08 PM

!!wiki/MALDI-TOF

Chemobot

Matrix-assisted laser desorption/ionization

Matrix-assisted laser desorption/ionization (MALDI) is a soft ionization technique used in mass spectrometry, allowing the analysis of biomolecules (biopolymers such as DNA, proteins, peptides and sugars) and large organic molecules (such as polymers, dendrimers and other macromolecules), which tend to be fragile and fragment when ionized by more conventional ionization methods. It is similar in character to electrospray ionization (ESI) in that both techniques are relatively soft ways of obtaining ions of large molecules in the gas phase, though MALDI produces far fewer multiply charged ions....

M.A.R.

'TOF' means 'spit' in Persian

Fl.pf.

all persians are mass-spectrometers

Martin - マーチン

maybe mass-spitters

M.A.R.

Pittoe

I just spat

Or is it pittohe?

M.A.R.

12:40 PM

Tags for this? chemistry.stackexchange.com/questions/3961/…

orthocresol

tough

funnily enough maybe [everyday] works here

M.A.R.

[well-chemistry]

Martin - マーチン

yesterday, by Martin - マーチン

Martin - マーチン

1:15 PM

someones playing with my favourite tags...

M.A.R.

@Martin-マーチン Who?

Martin - マーチン

aww... crap

M.A.R.

1:32 PM

@Martin-マーチン Add an exclamation mark to the beginning

Bounty Hunter

6

Q: Atomic mass unit based on other atoms

Question: Which one is larger: an atomic mass unit based on the current standard or one based on the mass of a Be-9 atom? My attempt: Current standard is $1/12$th the mass of a C-12 atom. New standard is $1/9$th the mass of a Be-9 atom. Now I understand that the only the basic unit of me...

mole

Feeds

1:50 PM

M.A.R. has made a change to the feeds posted into this room

hBy2Py

@Martin-マーチン That's just so wrong.

@M.A.R. underground-biochemistry

Yeah, it's annoying that you have to download and reupload images to chat

Martin - マーチン

@M.A.R. tanks

hBy2Py

@M.A.R. Ooh - that works???

M.A.R.

@Martin-マーチン jets

@hBy2Py In chat, most of the time

hBy2Py

Well then!

My life is hereby simplified!

Martin - マーチン

1:55 PM

So I see we're going to be spammed with some of xkcd's finest soon :D

Feeds

M.A.R. has made a change to the feeds posted into this room

orthocresol

@hBy2Py You can upload from the web.

hBy2Py

Naaaah. Unlike @ortho I only use my powers for good.

Oh hey, there's another pane to that upload dialog

Um.

Well, now that I've thoroughly embarrassed myself, off to the day!

orthocresol

Did you know that you can also use score:..1 to search for all posts with score <=1 ?

hBy2Py

I have known that since somewhat recently

orthocresol

1:57 PM

They should really add that to the advanced search tips.

Someone should post it on meta.SE.

Not me, of course. I'm too busy being a dictator around here.

M.A.R.

Moving, please wait

Waffles

@orthocresol Isn't it already there?

Martin - マーチン

i thought so, too

orthocresol

It is on this page: chemistry.stackexchange.com/help/searching

But not in the tips at the RHS of the search bar.

M.A.R.

Well, so it is somewhere

Martin - マーチン

oh, I thought you ment that page

hBy2Py

2:02 PM

@orthocresol Yep, was gonna say -- I saw it recently in some fashion of the site help

Martin - マーチン

well, time to eat, and sleep... see y'all soon

orthocresol

Well, as long as it's somewhere...

hBy2Py

@orthocresol right now:

'night, Mart

1,3-feeds

2:32 PM

0

Q: What can I do to clean up old comments?

Comments are ephemeral by nature, and a lot of them get deleted everyday on different sites. (See this) I stumble upon old questions sometimes, which contain some comments, naturally. I know I can easily flag Martin's welcome comment as obsolete, or "thanks" comments as too chatty, but what sho...

discussion editing comments flagging

hBy2Py

2:54 PM

Thanks, @Jan!

M.A.R.

Thanks, @Jan!

your link doesn't work. — Jakob Weisblat Jul 27 '14 at 21:25

LOL, I was gonna flag this as 'obsolete' since the answerer said 'Thanks, fixed'

But then the link isn't working again, so I flagged 'fixed thanks' as obsolete

hBy2Py

@M.A.R. If the link name has a percent sign in it, that's probably what's fouling things.

M.A.R.

@hBy2Py I didn't see a percent sign

hBy2Py

When I click the link, the URL of the page that loads has a percent sign in it

Perhaps there's a space in the filename on the server?

And Chrome is substituting %20 for it

But the web server on the other end can't find lalala%20thisthat.pdf, because the file it has is named lalala thisthat.pdf

M.A.R.

@hBy2Py Oh I see what you mean. I removed the space and it still isn't working

@hBy2Py Digged a bit, it seems the server has changed /chemcrs to /chem

But even that didn't fix the URL

hBy2Py

3:12 PM

Yeah, it's just a badly named file for getting to it by HTTP

Either that or maybe you can only access it from within the university network or something

Jan

@hBy2Py You’re welcome!

After having forgotton ron’s bounty, I made sure not to forget your’s ;)

hBy2Py

<nod>, pick a bad time to take a day's break from the site & it could be quite annoying.

Jan

I wasn’t even taking a day’s break specifically. I just hadn’t been online for a few days ^^'

But I figured since it’s ron he can live with only half the rep ^^'

hBy2Py

Do believe he'll survive, yes. :-)

M.A.R.

BTW, to anyone that has some rep on bio.SE, go cast your votes in the election

3

Gah, can we flag comments for improper capitalization?

Jan

3:26 PM

@M.A.R. You can but the @orthomod, the Loongmod or the Martmod will probably dismiss them.

M.A.R.

OK, I think I'm good for today. Flagged some comments. IF YOU DECLINE ONE OF THEM, MODS, I'M GOING TO FLIP YOU, IN FRONT OF EVERYONE ELSE, IN HERE

orthocresol

@M.A.R. You can link them here if you really want them to be edited.

M.A.R.

@orthocresol Nah, more fun flagging the hell out of chatty comments

orthocresol

I edit old comments regularly, e.g. to correct obnoxious formatting issues (usually don't bother with minor ones), or to include the title of linked question.

However, capitalisation might be a bit too trivial.

M.A.R.

BTW, if you saw an obsolete flag on an old comment, and you didn't understand why, just mark as helpful

pls pls pls

2

They're sometimes hard to dig the context for

Jan

3:29 PM

Do you see who flagged a comment? xD

orthocresol

I'm looking at your comment flags now.

M.A.R.

And the flagging UI is stupid

@Jan No.

Shame xD

(┛◉Д◉)┛彡┻━┻

3:30 PM

@M.A.R. I usually try to open the original post to look for context.

unless the flag is on a thank-you or welcome comment that is obviously unneeded

M.A.R.

You're awesome

You're even more awesome if you mark my flags as helpful

orthocresol

I think that instead of flagging the post you can custom flag the comment.

Jan

^ this

orthocresol

I mean, at the end of the day it does not make much of a difference.

In fact, if you are lazy to click many buttons, you can just go the other route, flag the post and write "Comments on this post are obsolete." We will use our judgment to decide which ones to keep (if any).

Of course, that does not give you as many helpful flags.

pentavalentcarbon

NEED MOAR HELPFUL FLAGS PLZ

M.A.R.

3:36 PM

@orthocresol I custom-flagged the post because I'm too lazy to custom-flag more than one comment with a specific tailored message

orthocresol

anyway, the bottom line is that mod flags get sent to humans so there's a fair bit of leeway

M.A.R.

@pentavalentcarbon How many, network-wide?

-4

Q: Can a dissolved compound be extracted from its solution with household means?

I have these CBD capsules that I ordered. The CBD inside the capsule is mixed with coconut oil. I admit that I don't really know all that much chemistry, but I was wondering if there was any way that I - or someone helping me - could extract the CBD from the coconut oil, as I don't want to ingest...

home-experiment

Reopenable?

@orthocresol And comment flags to animals? o.O

Cute kittens, for instance?

Jan

@M.A.R. And spam flags to the community.

M.A.R.

Nice. I should flag more comments.

orthocresol

Comment flags $\subset$ mod flags

M.A.R.

3:38 PM

@Jan Well, only if they gather up to 6

1 min ago, by M.A.R.

-4

Q: Can a dissolved compound be extracted from its solution with household means?

I have these CBD capsules that I ordered. The CBD inside the capsule is mixed with coconut oil. I admit that I don't really know all that much chemistry, but I was wondering if there was any way that I - or someone helping me - could extract the CBD from the coconut oil, as I don't want to ingest...

home-experiment

1 min ago, by M.A.R.

Reopenable?

orthocresol

You guys decide.

M.A.R.

I am in the mehest mod evar

Resonating between yes and no

1000 times per second

Jan

I didn’t resonate, I found my stable state in no.

orthocresol

P/S if you really, really want helpful comment flags, do a google search for "welcome to chemistry" site:chemistry.stackexchange.com

M.A.R.

@Anonymous your profile pic is anonymous to me

Jan

3:40 PM

@orthocresol Meh, tbh I don’t think those comments cause harm.

M.A.R.

@orthocresol Oh right

@Jan Don't cause harm, but never let down a chance to flag Mart

orthocresol

@Jan No, they don't cause harm. However, they are prime candidates for cleanup, since they have probably served their purpose a long time ago.

Anonymous

@M.A.R. thanks for feedback. Everything worked!

M.A.R.

Huh, now it's working

Stupid joke-ruining system

orthocresol

I would, however, consider somebody who searched for and flagged many welcome comments to be quite a zealot.

M.A.R.

3:42 PM

I qualify

Also prohibiting people from getting their Marshal badges since 1888

WHO REVIEWED THAT FIRST POST

pentavalentcarbon

Jan

@M.A.R. And not being successful with it …

orthocresol

@pentavalentcarbon It is now chemistry.meta.stackexchange.com

M.A.R.

@pentavalentcarbon I used to get this before, but after the HTTPS PSA, it no longer happens

@Jan Goddammit, I thought at first 76 people have the badge

pentavalentcarbon

I blame Google then

orthocresol

3:44 PM

I would have thought that meta.chem.se would redirect to chem.meta.se.

M.A.R.

Also well, Normal would've gotten the Marshal no matter what

He has like 40 Marshals now

@orthocresol They explained that for some stupid reason Google can't decide that they're the same domain

orthocresol

I see. shrug I haven't been following it too closely.

Also, I never received a welcome message.

9

Q: In spectroscopy, is it possible for the sample to be excited multiple times?

The context of my question is rotational spectroscopy (using microwave radiation), where there is the $J = \pm 1$ selection rule. The way I understand spectroscopy is that the sample is irradiated with a range of frequencies. Is it possible, during the irradiation of the sample (say CO), for the ...

spectroscopy

Oh dear, a one-tagger.

Jan

@orthocresol But at least it’s a somewhat good tag …

pentavalentcarbon

FIX IT NOW

orthocresol

@Jan Yeah, I'm actually not sure what else to slap on it.

M.A.R.

3:48 PM

@orthocresol Give me your diamond RIGHT NOW

orthocresol

7 hours ago, by Martin - マーチン

@orthocresol homework everyday-chemistry reaction?

Maybe this.

pentavalentcarbon

My welcome messages got wiped out. BOOOOOOO

M.A.R.

BTW would it suffice if I flag a 'meta' comment, i.e. one that's about site workings related to the question but not the content of the question as 'obsolete', or do I need to explain in the custom option @Ortho?

orthocresol

At least they were converted to helpful flags.

@M.A.R. Hmm, let's say it was my first time seeing such a flag. If you had flagged it as obsolete I would not have understood it.

M.A.R.

. . . Crap, I've already flagged

Jan

3:51 PM

That moment when you watch a video commentary of a journalist you’ve read a lot of written comments of and you just think ‘the heck, that face?’ xD

orthocresol

However, if you mention to me in chat that you'll flag meta-comments as obsolete, then I'll understand it.

M.A.R.

@Jan Yeah, my default face of good voices is Brad Pitt

@orthocresol I've flagged meta-comments as obsolete

Jan

@M.A.R. I also didn’t have a voice yet xD I was just reading. But at least the Bavarian accent was as expected :D

orthocresol

Yes, okay. I've got the message, but you'd also need to inform Mart and Loong, or they might decline your flag (not assuming on their behalf that they would, but they might).

This is definitely a homework-question so I added the homework tag. Note that homework not only applies to formal homework given by a school or uni, but also to self-study problems and the like, where showing the means of arriving at the answer is more important than the answer itself. — Jan Oct 2 '15 at 11:54

M.A.R.

Meh, too much trouble. Would just explain it as a custom message

orthocresol

3:53 PM

Hmm....... NUKE THIS

2

Jan

@orthocresol Don’t forget the manly soil and the caffeine molecule ;)

M.A.R.

One less chat message

pentavalentcarbon

CAPS BRIGADE

orthocresol

Yes, jonsca too. Manish is real busy now, I think.

Jan

Whaaa~t? A new pound coin?

If that’s the case I have to go to Britain soon to make sure I get a complete collection of pound coins from all parts of the kingdom …

orthocresol

3:55 PM

It's to celebrate Brexit.

Jan

How much time do I have?

orthocresol

P/S I have an old 5-pound note. You may want to collect that before it goes extinct..

Jan

15th October …

Another reason to attempt to do Interrail this summer …

orthocresol

@orthocresol Oddly enough, the new £1 coin reminds me of the current €1 coin.

Jan

@orthocresol I don’t collect banknotes, though ;)

@orthocresol It does me, too, for some reason. Must be the twelve-sided shape.

orthocresol

3:58 PM

I think for me, it's the gold border on the silver coin.

Jan

Meh, seems to obvious …

But that also means that Britain is taking over good stuff™ from its convict colonies :D

orthocresol

Welcome to Chemistry! Welcome to chemistry.SE! If you had any questions about the policies of our community, please ‎visit the help center. Please edit in the contents of your images into the question when you get the time; as images are not searchable and people having the same problem would have a hard time coming by this question. — M.A.R. Feb 23 at 10:34

N U K E
U
K
E

M.A.R.

Noooooooooooooooooo

@DEAD thanks :) — Aamirah Aug 16 '16 at 14:58

orthocresol

How are you finding all these old comments?

M.A.R.

@orthocresol The power of divine, and my sheer awesomeness

orthocresol

4:06 PM

I'm slowly starting to suspect that you're Loong's sock.

M.A.R.

Nah, Loong never admits he's awesome

Also you're the sock, sock

Jan

@M.A.R. Just adds to the disguise.

orthocresol

@M.A.R. Yeah, but he also clears tons of old comments.

M.A.R.

Oh, then good thing I got back to the comment flagging industry again

He wouldn't have left stuff for me to flag soon enough

Also I have 300 more flags on SO now, and I should make up for my primary site

Oh, just noticed Benzene is no more. :/

He's probably brominated

orthocresol

?

Benzene, Austin, TX, United States

1.5k 3 24

organic-chemistry acid-base homework quantum-chemistry reaction-mechanism physical-chemistry reaction

M.A.R.

4:09 PM

Huh, weird.

There was a comment by a deleted user, then another "@Benzene thanks"

So

orthocresol

Ah, I saw your comment flag. Some investigation reveals that it was a different Benzene.

Jan

Maybe hexadeuterobenzene.

M.A.R.

Stupid deuterium phonies

Heh, two answers posted, accepts one and comments under the other "alright, thanks". Votes on neither

orthocresol

4:25 PM

Oh, regarding yesterday's serial voting, my votes were reversed. However, it looks like nobody else's were.

Jan

Mine weren’t.

You can reverse them if you want :D At least the question ones.

orthocresol

I can't do that.

I guess, it is not that big a deal. I think it was well-intended. At least one of them were reversed, so we know who it is and we can follow up.

Hi and welcome to chemistry.stackexchange.com. Feel free to take a tour of the site. I improved the formatting of your post by adding MathJax, learn more about it in the help center, this meta-post or this one. Note that the charge of $\ce{[FeCl3]^3-}$ doesn’t seem right and that I have not yet heard of $\ce{[Fe(C204)3]^3-}$ — I corrected both. — Jan Aug 23 '16 at 11:28

$\ce{[Fe@C612]^3-}$?

Have you never heard of that?

shakes head

Jan

@orthocresol Well that’s a completely different complex! D=

M.A.R.

@orthocresol Pfft, have you ever heard about h20?

Jan

(Incidentally, is the @ permitted in there?

@M.A.R. An aggregate of 20 myonic hydrogens?

M.A.R.

4:31 PM

@Jan I guess it is. Only 612 other atoms

@Jan AKA water

Jan

That moment when you realise the authors used a compound as a starting material in a reaction but that’s the only reference ever of that compound in chemical literature as far as SciFinder is concerned ô.o

hBy2Py

@orthocresol <nod>, no reversal here. Must've been just few enough not to trip the auto-process.

orthocresol

@Jan pubs.acs.org/doi/abs/10.1021/ja065764e

amanuel2

Guys

i have a problem :(

hBy2Py

Did you delete your homework?

;-)

Jan

4:41 PM

@orthocresol Apparantly, it is. *shrugs*

amanuel2

Does anyone know the reason why to get moles of water you subtract hydrated from anhydrous(hydrated-anhydrous)

No its a CER .. and i cant figure the reasoning part

hBy2Py

That seems backwards

Actually, @amanuel2, this question would be better discussed in the main chat room

amanuel2

@hBy2Py hydrated - anhydrous

orthocresol

← 9 messages moved from Spring cleaning.

hBy2Py

@amanuel2 Yeah - I'd think so

amanuel2

4:43 PM

Anyone know?

orthocresol

@Jan Martin and I were discussing hint-answers earlier today.

We both don't like them, but I'm not sure how many people on the site agree.

hBy2Py

@orthocresol I dislike.

They have too little general applicability. They become a squishy Q&Discussion, rather than Q&A.

For any OP with enough rep, the whole discussion should be taking place in a chat room, not on the Q&A board.

Jan

In my opinion, the case is clear. A hint does not attempt to answer the question, it attempts to provide information so the asker may answer the question themselves. Regardless whether a question is good or not, a hint is not an answer.

orthocresol

Yes, I agree fully.

(Mart as well.)

hBy2Py

I wish SO Overlords would implement this:

57

Q: Allow inviting people with rep < 20 to private chat?

Quite often I have run into situations where I had an extensive talk with a newbie (about SO and/or programming itself) using the comments. Since you shouldn't use the comments to further discuss things (which are often off topic from the original question), I'd like to use the chat for those dis...

feature-request chat

Jan

4:56 PM

Should I be posting on meta about it? :D

orthocresol

If you do, you would be saving us the effort of writing another meta post. :)

hBy2Py

Now, there is usually a mod close enough by here on Chem.SE that they could hammerinvite a <20repper into a new chat room for the purpose

But it would be so much easier if an xk+ repper could just invite any <20'er into a chat to help them out.

And we could just $\Large EXPUNGE$ the questions on sight.

Jan

11

Q: Are hints more appropriate for comments or answers?

A recent post has garnered the attention of a 'hint' which was inserted into the form of an answer. By definition, a hint is not a solution to a question though it may lead to one. I believe that hints such as these are more appropriate for a comment to an original post rather than be listed as ...

discussion

orthocresol

Hmm... that answer though...

Jan

5:11 PM

0

Q: Are answers that only contain hints to be considered answers or not?

I recently flagged an answer as not an answer because its entire content was something along the lines of Hint: Consider these two mechanisms. What would happen in case one? What would happen in case two? It was an answer to a (heavily downvoted and thus no link) homework question. I assume...

discussion answers flagging

Inb4 @1,3-feeds

Loong

@Jan On math.stackexchange, you would need more than 80000 flags for that. :-(

Jan

@Loong Thank God this is not maths.

M.A.R.

@Jan Not even math

in Root Access, 5 mins ago, by TOWMN

orthocresol

5:30 PM

-1

Q: Can I convert primary alcohol into tertiary alcohol?

If possible, please help me with the reactions.

organic-chemistry alcohols

Argh!

Jan

NFO.

M.A.R.

Stop talking in abbreviations

@Jan No Effing Osmium?

Jan

@M.A.R. Nuke from orbit.

orthocresol

I also thought it was no effing something at first.

M.A.R.

@JAN HAHAHAHA

1

A: Decreasing rate of reaction between I2(s) and H2(g)?

HINT 1: If you increase pressure in a fixed volume, what happens to temperature? HINT 2: What does surface area do to reaction rate?

DELETE THAT, YOU PORPHYRIN

Feeds

5:43 PM

GemsFromStackExchange: ♫ It’s a hard knock life, for us… ♫

posted on March 28, 2017

♫ It’s a hard knock life, for us… ♫

orthocresol

@Jan In fact, for the question you flagged, it seems like a good candidate for outright deletion.

Jan

@orthocresol The one that started it all? Well, as per our given policy, OP showed ‘effort’. (In inverted commas because of the ‘effort’ they showed. It’s infinitesimally larger than zero.)

orthocresol

εffort?

2

Anyway, yes, there is εffort; but I just find it lousy overall...

It has also probably been answered 100 times on this site already... comparing reactivity of ArCH2X + RX + CH2=CHCH2X.

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