The Periodic Table - 2016-04-19

« first day (1454 days earlier) ← previous day next day → last day (2935 days later) »

user116211

4:19 AM

!!greet/@CurtF.

Welcome to The Periodic Table @CurtF.! 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!

1 hour later…

Martin - マーチン

5:25 AM

@Hippalectryon I'm pretty sure it did not post any other question after that until I issued it again. After @PhMgBr issued it, @mafia tried it too, but it had no effect since he is not registered. Maybe something happened then.

user116211

@Martin-マーチン I'm not the room-owner... it shouldn't response to mine, isn't it?

Martin - マーチン

yes. The meta-post lists a few user Id's that are registered for these commands

3 hours later…

user116211

8:37 AM

@PhMgBr: o/

\O

user116211

@PhMgBr WoW, a big mutant head.

@MAFIA36790 Oxygen is insulted.

user116211

damn.

9:27 AM

!!flip/damn.

(づ๑ʖ๑)┛︵pɐɯu˙

3 hours later…

user116211

12:45 PM

!!coffee

user image

user116211

Thanks.

Have another !!!coffee

user image

will not last though

user116211

12:56 PM

@skillpatrol: o/

\o

Strange... the second cup is suppose to disappear :-/

!!help

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.

Starting a command with !!! instead of !! will make me delete my message after 1 minute and a half.

Try !!tea ;)

user image

user116211

1:09 PM

@Jan: What's up? o/

user116211

@skillpatrol Let me see.... !!!gun

@mafia hi o/

Please don't sink me down with my feet concreted D=

He's a gangsta!

user116211

!!!coffee @Jan

user image

user116211

1:19 PM

@Chemobot Why are you not removing?

user116211

;_;

He's a caffeine junky

user116211

@hippa halp ;( (okay when you are free from your exam burden ;P )

@MAFIA36790 No, !!tea ! D=

user image

1:23 PM

!!!tea

Why can @Chemobot remove !!!tea but not !!!coffee? D= This is discriminating! D=

user image

8 mins ago, by skill patrol

He's a caffeine junky

:D

1:39 PM

If he were, he should know that black tea contains more caffeine than coffee ;p

pentavalentcarbon

@skillpatrol It's probably matching '!!' before '!!!'.

pentavalentcarbon

1:51 PM

Mmm, this !!coffee is pretty good.

user image

user116211

WoW! got a message from .... autogenerated??

user116211

user image

user116211

@mart.... remember my complain?

Now let's see what happens if I talk about !!!coffee first and !!!tea second, subsequently followed by !!!sushi?

2:00 PM

user image

user image

@Chemobot you got the order wrong!

user116211

!!flip/@Chemobot

(۶ૈ‡▼益▼)۶@ɔɥǝɯoqoʇ

Okay, so only !!tea is autoremoveable.

user image

2:03 PM

!!doubleflip/aet

ʇǝɐ︵╰(゜Д゜)╯︵ɐǝʇ

!!doubleflip

(╯ ͝° ͜ʖ͡°)╯︵ ┻━┻

user116211

@Jan hmmm... no atleast I am not aware of this.... it had been working good but now ;/

@MAFIA36790 Well, only tea out of sushi, coffee and tea …

Testing !!!beer

Retesting !!!sushi

And also testing !!!spam

And !!!ice cream

!!!gun

user116211

2:05 PM

@Jan: There is sandbox for playing with @chem ;P

pentavalentcarbon

Why anyone would want to remove any of these wonderful things from their lives is beyond my understanding.

I would be soo~ happy if I could remove coffee ;) ;p

@MAFIA36790 But I don't want to go into @chem's sandbox, I want to use @PhMgGrignard's sandbox D=

All them worked, only !!!coffee seems to be borked o.o'

user image

user116211

!!gun !!!coffee

user image

user116211

2:08 PM

@pentavalentcarbon hmm....

user116211

::smothers @penta::

pentavalentcarbon

That's not very nice :(

user116211

:((

user116211

@CowperKettle o/

Good evening, Mafia, and y'all!

I've just read about complementary colors. Quite nice.

chemguide.co.uk/inorganic/complexions/colour.html#top

user116211

2:35 PM

!!greet/@unknownCoder

Welcome to The Periodic Table @unknownCoder! 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!

Oh, the @Cop turned into a @Cow =O

3:31 PM

@Jan !!flip/@Jan

◟(`ﮧ´ ◟ )@ɾɐu

¡sdoo

user116211

3:48 PM

@Jan why not flip @PhMgBr?

Don't !!flip and fly.

user116211

You can also !!gun @PhMgBr

╾━╤デ╦︻ԅ། ･ิ _ʖ ･ิ །ง

1 hour later…

4:58 PM

How can we compare the stability of two molecules?

@manshu Many, many ways to do that.

The main way is to do some calculations with some data you have, but that's not what happens in exams.

qualitatively

Which molecules are we talking about, in which medium, in what temperature, and under what pressure?

"under what pressure"

\o/

5:01 PM

I am given 4 molecules... Cr2+, Cu+, MnO4(3-), MnO4(2-)

Are you aware that none of those are molecules?

No.

:p

What do we call them?

ions?

Yes.

So..they are in aqueous solution.

How can I compare?

OK, one simple rule

Charge concentration.

5:05 PM

Ohhh...

The less charge density you see on an ion, the more stable it is.

2

So..Cu+ is the answer...

So OH- is smaller than NO3- and it's less stable.

@manshu I dunno, I'd go for manganate

Does the half filled shell or full filled shell of the central atom have any affect?

@manshu There are many effects at play.

What I told you is a mere guideline that works most of the time.

For instance, nitrate is especially stable because of Y-aromaticity.

5:09 PM

what on earth does stability even mean

2

@orthocresol lol

@orthocresol Less reactivity in this context I believe.

@PhMgBr close as unclear what you're asking

Sure, I'm playing with prey.

@PhMgBr Y-aromaticity?

5:10 PM

OMG. :p

@CowperKettle Oh, that's one beautiful beautiful concept.

> However, this concept is controversial and some authors have stressed different effects

user116211

Damn, i was busy at the Session...

(Wiki)

Stability is the property of a building to not fall into pieces.

5:10 PM

For starters, delocalization has meant stability as far as I have seen.

This in turn means that the building I work in should be considered metastable at best.

I just recently read about a thingie with two oxygens being more stable due to the charge being spread among them.

@CowperKettle Thingie with two oxygens is very descriptive

Though I think you're talking about carboxylate.

@PhMgBr Some organic thingie. THeir names are so weird, I fail to remember them.

@PhMgBr Why did you go for Manganate?

5:12 PM

@PhMgBr Yep! Looks like it.

@manshu It's much larger than Cu+.

@CowperKettle Delocalization, again.

The article I read compared that carboxylat and a phenol ion.

Delocalization basically means electrons find more centers to wander around in, @Cowp.

Elvis Presley Working On The Building/ Lyrics

@PhMgBr Yes, and it attacts wandering H(+) less.

@PhMgBr Ohhh...So when we talk about size, we talk about the size of the whole ion. Not just the central atom. Right?

5:14 PM

@manshu Yes.

Oh, @Brian sensei is here.

bows to sensei

@CowperKettle That's exactly what we're interpreting stability to mean here.

Think of it like this: Everything is colliding in that skirmish of a solution.

@PhMgBr Konnichi wa, @PhMgBr-san

Is it okay if I swap my community promotion ad image for a fancier version?

8

A: Community Promotion Ads - 2016

@Brian Yeah sure.

user image

It's already made it into circulation -- still ok?

5:20 PM

Why wouldn't it be?

@Brian Remove IR, then ok ;)

@Jan Occh, @Jan, at it again with the IR thing!

@PhMgBr Dunno. But, I've learned from experience that often it's better to check on SE, since there are many rules/subtle things that don't occur to me.

Lemme rererecheck with Tavern.

@Brian Always xD

Nah, fine by me, looks good ^^

Updated to nicer image, composited in MS Powerpoint 2010. Retained the IR spectrum specifically to spite @Jan. — Brian 23 secs ago

=DDDDD

I'd also like to point to a late entry for CCCDBD:

2

A: Community Promotion Ads - 2016

5:26 PM

CCCDBD Creative Chemists Chaotic DataBase Distribution?

heh.

Click it, you won't regret it...

@Jan Cardinal Crap Cruise Daily Badass Dungeon

pentavalentcarbon

The CCCBDB is an amazing resource that I use all the time.

@PhMgBr Crazy Chat Characters Doing Bad Deals

@pentavalentcarbon I have several other NIST sites lined up that I want to work up CPAs for.

Oh, clicking on the link actually helped. My bad ^^' *goes standing in the corner in shame*

pentavalentcarbon

5:29 PM

I've used the CODATA pages and the Webbook a few times, but I didn't know there were others.

@Brian Cozy Cashier Cushions Dangling Below Dormitories

Data Gateway; srdata.nist.gov/gateway/gateway

Chem Webbook: webbook.nist.gov/chemistry

Reference on Constants, Units and Uncertainty: physics.nist.gov/cuu/index.html

Phys Meas’t Lab: Physical Ref Data: nist.gov/pml/data/index.cfm

Flags as spam

pentavalentcarbon

That gateway is the sort of thing I've been looking for.

Doesn't have the property I'm interested in right now, but still good stuff.

user116211

okay, my day ends here....

user116211

5:33 PM

good night @PhMgBr and all o/

'night!

\o

Nighty, @mafia o/

0

A: Density and solubility

This answer is extension to Ryan's Answer in order to better analyse the Asker's question and interpret its consequences. BASIC RULE OF SOLUBILITY "In order for a molecule (solute) to dissolve in water, energy is required to overcome the attractions between the solvent molecules and break the h...

What do you guys think of this?

@PhMgBr He's turning this into a habit

5:52 PM

He's very eager, but posts a lot of stuff that's (A) either borderline or fully out of SE style/content rules, and (B) terrifically hard to read.

(B) is the bigger problem at the moment, I'd argue

I really, really, really want to not be biased by prejudice in any way at all when confronting humans, but a large number of users with usernames that look Indian to me are making it very, very hard … =C

@Jan Same feeling here, I had for a long time

Oh wait

Your answers aren't bad, but the amount of bolding you use makes reading them cumbersome. Bold isn't another font you can use every second line, it's for highlighting the most important part of the messages in your answer. — PhMgBr 3 mins ago

He says in his profile that he hates chemistry, and yet he's posting with quite an authoritative tone.

@Brian Hell, I can't talk as confident as that about this site and I've been literally living here for a year and half.

@PhMgBr He just doesn't understand:

I have edited my text. thanks for your nice tip — Shivanshu Gupta 1 min ago

He needs to be kindly discouraged from posting more answers, I think.

6:04 PM

Yeah, I laughed when I saw that comment xD

@Brian It's less acidic now.

My diethyl ether eyes burn less now.

But no, as long as I can guide, I won't discourage.

Lemme edit. Cracks knuckles !!table

@PhMgBr Bless your enthusiasm, sir.

!!flip, dammit

/( .□.) ︵╰(゜益゜)╯︵ /(.□. /)

@Brian How else do you think am I tolerated here? ;)

6:07 PM

@Brian But he still doesn't mention the actual pKa of Ca2+, which would be the only relevant information here.

@Loong You mean, [Ca(H2O)n]^2+, don't you?

a complex ion

Your former copper self should know them well ;)

I wonder whether complex ions really "hybridize" their orbitals when these orbitals are empty.

@Jan Yes, but I transitioned into Cowper, like transition metals are wont to do.

@Jan in effect, yes

6:12 PM

@CowperKettle Since hybridisation is a mathematical concept, the question is moot ;)

I see.. again that MO.

If anything, you may want to calculate excited states and take those orbitals.

nods

*Almost any function of x,y,z can be an unoccupied orbital*:
When calculating orbitals by using basis sets, there are typically
more orbitals generated as needed to construct a wave function
determinant. Most of the algorithms to solve MO equations
generate as many orbitals as there are basis functions. One says:
‘the calculation also yields ‘unoccupied’ orbitals’. There is
nothing special about these in the sense that any other function
orthogonal to the ‘occupied’ set is by definition an unoccupied

@Martin-マーチン I'll look into it this weekend

6:20 PM

doi:10.1021/ed200673w, p1035

Could not find the requested DOI : doi:10.1021/ed200673w

!!doi/10.1021/ed200673w

DOI 10.1021/ed200673w :
"Orbitals: Some Fiction and Some Facts"
First author : Jochen Autschbach

@CowperKettle So, you can think of them as being hybridized, or not, more or less at your convenience!

Dang, @Hipp, that feature set is really coming along!

@Brian Thanks

6:22 PM

@Hippa is it possible for the bot to give a link too? (Sorry if this has been asked before I haven't been around much lately)

@CowperKettle I like that paper a lot.

@orthocresol I'd live to do that, but I don't know any way to insert clickable links in multiline comments, do you ?

@Brian It's a nice journal! I translated several artciels from it for my translation courses.

🎺🎺🎺 AND HIS NAME IS JOHN CENA 🎺🎺🎺

.__.

6:23 PM

LOL

@Chemobot Impeccable timing, Robo-sir.

@Hippalectryon Anyway, sorry I've no idea

Testing
http://www.google.com

Testing
[le test](www.google.com)

Testing
Also http://www.google.com

I just included "http://www.google.com" in the text and it auto-converted it.

6:25 PM

@Brian Ok, i'll add the link that way this weekend then, thanks

So, "http://dx.doi.org/[DOI]" should do it.

Though it might not format quite the right way...

J. Chem. Educ., 2012, 89, 1032
Also http://dx.doi.org/10.1021/ed200673w Here's the link

Why is formatting off in multiline chat messages anyway ?

Treats it all as fixed-font text

Whether or not you indent it as such

Testing
Flush left
Indented four spaces
Flush left

Blockquote caret:
> Testing

why did the chicken cross the road ?

6:29 PM

!!chicken

@Brian @Loong @Jan Here's how it's done

*Applauds to @grignard*

Yeah, he was a cool scientist

I just thought of the worst pun ever ._. we should make a YouTube video series "Chemistry professors react"

2

Sorry

I'm going to star that just to enhance your pain. (And because I love painful puns)

6:38 PM

I'm going to pin that just to enhance your pain. (And because I love painful puns)

user image

My little bounty is ending soon.

:(

Anything else about why fluoride is the leaving group instead of the alcohol in phosphonates?

@Loong Fluoride is a jerk.

6:48 PM

Noted.

!!flip/fluoride

(۶ૈ‡▼益▼)۶ɟꞁnoɹᴉpǝ

7:16 PM

@Brian also, that was a nice article to read, thanks for sharing :)

7:26 PM

BTW @Brian I confirmed with Marshmallow in The Tavern. You can change the image.

@orthocresol Which one?

the one above about orbitals

Oh, Orbital fact and fiction?

Haven't read it yet.

7:44 PM

@orthocresol Sure! I thought it highlighted well some of the (often substantial!) gaps between common introductory understandings of orbitals and their reality.

@PhMgBr What. Are you talking about? Is this some new nickname for @Mart?

Yo dawg/nondawg, got anything to say about Comment Templates?

2

🎺🎺🎺 AND HIS NAME IS JOHN CENA 🎺🎺🎺

@Chemobot Easter egg, huh

@Brian No no, it's another user in another chatroom.

@Brian chat.meta.stackexchange.com/rooms/89/tavern-on-the-meta

The main chatroom for meta.SE.

Pretty useful to check some stuff.

@PhMgBr <nod>, probably should have thought to do that myself.

@PhMgBr That's nor supposed to happen so often ._. in theory it's one chance out of 1000

7:52 PM

@Hippalectryon Your bot is totally borked

Beware the revolution

1

Q: Comment Templates

Guidance is pretty important, and I'm going to write a meta post in some other meta about it soon. Long story short, if it weren't about guiding users, I wouldn't be writing this and you wouldn't be reading it. There are some things that are happening often enough in the main site that I feel li...

discussion comments

« first day (1454 days earlier) ← previous day next day → last day (2935 days later) »

Transcript for

Apr '1619

The Periodic Table

Haikus are awesome / Chemistry's even better / So pull up a chair

blowing-the-lab-up german-stuff hullo love-you-all martin table-flipping tre welcome

join this room
about this room

00:00

06:00

12:00

18:00

all times are UTC

site design / logo © 2024 Stack Exchange Inc; legal

mobile