The Periodic Table

Todd Minehardt

00:58

hey @inɒzɘmɒЯ.A.M let me catch you tomorrow - thanks for the tip o' the hat, i gotta run :)

skill patrol

05:01

So three logicians walk into a bar. The bartender says "Do all of you want a beer?" The first one says "I don't know," the second one says "I don't know," the third one says "Yes!"

2

Martin - マーチン

Have a star for that one :D

skill patrol

Thanks pal :D

Martin - マーチン

I like the second version of that joke, too.

So three logicians walk into a bar. The bartender says "Do all of you want a beer?" The first one says "No."

skill patrol

indeed

Berne

05:22

Hi! @inɒzɘmɒЯ.A.M

OK.

Anonymous

06:12

@Martin-マーチン @Jan anyone there?

Anonymous

Can someone tell what does the term 0.01 g formula weight of NaCN mean ?

Anonymous

Is it same as 0.01 mole of NaCN ?

Martin - マーチン

I don't really know... i am too long out of the experimental business

Berne

07:00

Hi@inɒzɘmɒЯ.A.M

inɒzɘmɒЯ.A.M

@Berne Hey!

Berne

I am studying linguistics for the test.

inɒzɘmɒЯ.A.M

@SanchayanDutta I thought it meant 0.01 g of NaCN.

@Berne I'm writing Mr.Munesyar's homework.

;)

Berne

Oh, no, too boring.

Jan

@San it's a rea~lly bad way of putting things, because it mixes moles and weight. I would refuse that description and ask for one in grams, moles or equivalents.

inɒzɘmɒЯ.A.M

07:08

@Jan So what does it mean?

Jan

I'm not sure.

inɒzɘmɒЯ.A.M

"0.01 g formula weight of NaCN" = "I'm not sure."? O.o

Rigor

"Formula weight" should just mean the mass of the compound.

inɒzɘmɒЯ.A.M

Should isn't reliable.

Rigor

We need more context.

Anonymous

07:19

Ok I got it now...it just means 0.01 g mole of NaCN :-P...language can sometimes be such a hurdle :-P

Anonymous

Thanks to all of you anyway :-)

Rigor

physicsforums.com/threads/units-question-g-mol.61512

Berne

07:39

@inɒzɘmɒЯ.A.M Do you have a printer?

inɒzɘmɒЯ.A.M

@Berne Yes

Berne

did you see that paper in mehdi's hands?

inɒzɘmɒЯ.A.M

What paper?

Berne

mehromah

Berne

07:57

@inɒzɘmɒЯ.A.M What was the font munesyar was talking about.

inɒzɘmɒЯ.A.M

@Berne Comic Sans MS. And what's more, it's a terrible font no expert in typesetting would use. But anyways.

Berne

not bad

Jan

@SanchayanDutta So problem: What the heck is a gram mole? ;)

Rigor

08:22

the quantity of a chemical compound equal to its molecular weight in grams; now usually replaced by the mole. Also called gram molecule.

:D

inɒzɘmɒЯ.A.M

@Rigor Oh, I'm familiar with the deprecated gram molecule.

Anonymous

08:56

Hehe basically 1 g mole=1g molecule =1 mole while n g formula weight is n times the weight of 1 formula of that in substance grams !

Anonymous

However for 1g equivalent weight is 1 mole multiplied by now factor :-P

Anonymous

Can't believe I spent 2 hrs searching the meaning of these terms :-P ...hope it's resolved now!

Jan

10:15

Such stupid terms, as I said ;)

Anonymous

10:30

Really stupid :-P @Jan but I am happy that I could complete ionic equilibrium only after I learnt those terms :-P hehe :-D

Anonymous

*n factor (typo above)

getafix

11:22

Hi!

How is everyone.

Jan

Oh sorta fine-ish, I believe @getafix o/ Hi

getafix

o/

I am looking for some texbook recommendations..

Our pchem class, we are using atkins' physical chemistry..

Jan

Textbook recommendations? No clue, sorry .__.''

getafix

But sometimes i feel that the mathematics/derivations, are a little bit insufficient, or atleast seem that way to me. Could someone suggest some supplemental reading.

Oh no problem, Jan.

orthocresol

12:19

@getafix What subject are you doing? Thermo or quantum or something else?

getafix

thermo.

for now

orthocresol

i see

i know what you mean, I (and a lot of people I know) found Atkins horrible he just states things and skips 75% of the steps

so I used Levine's phy chem

amazon.com/Physical-Chemistry-Ira-Levine/dp/0072538627

getafix

I know right. and our professor, isn't a great help either. He asks to work through the math ourselves if we are interested.

orthocresol

can't comment on other popular textbooks, never really tried them :p

getafix

No problem mate. thanks. I already bought a copy of atkins for the course. will check this out from the library, and give it a go

orthocresol

12:26

Must say though, once you are familiar with the concepts and stuff, atkins is a great reference.

getafix

True. I have a feeling it would be great to come back to for like a review

but not so great if you are seeing all of this for the first time

orthocresol

Lots of people feel the same way so don't worry. All the best :)

getafix

Thank you. @orthocresol

orthocresol

suᴉʞʇɐ ┻━┻ ︵ヽ(`Д´)ﾉ︵ ┻━┻ suᴉʞʇɐ

Jan

Poor Atkins .__.

getafix

12:32

@Jan Given how much the bloody book costs, far from it...

hahaha, jk jk

Jan

I approve, it's a pun =3

user161117

13:06

yeo ppls

inɒzɘmɒЯ.A.M

@StevenGrigsby o/

user161117

\0\

inɒzɘmɒЯ.A.M

|o/

user161117

o^

user161117

broke arm

orthocresol

13:08

o

double amputee ):

user161117

you typing with your nose or toes?

orthocresol

my hands

user161117

either way I'm impressed

user161117

oh

orthocresol

only my arms were removed. i kept my hands..

user161117

13:09

ohhhhh

user161117

nubbin'

Martin - マーチン

@StevenGrigsby Really?

user161117

hey

user161117

Yeah

inɒzɘmɒЯ.A.M

You're right. I've also heard Cymatics are delicious. — inɒzɘmɒЯ.A.M 18 secs ago

Martin - マーチン

13:10

I admit my latest comment was very unprofessional, but are you really trying to unnerve me?

user161117

look I mean it's a simple mistake and I clarified in my comment and ph13 backed me up

user161117

it's an unfortunate thing since I can tell you put work into it bu

user161117

like don't go this route of "well you should have called it zig-zag"

inɒzɘmɒЯ.A.M

@Martin-マーチン ?

user161117

I appreciated it but like I don't need someone to tell me what I should have done eh? It's done, it's past, so yeah I am trying to unnerve you lol

getafix

13:13

@StevenGrigsby, @inɒzɘmɒЯ.A.M 0/

Jan

22 secs ago, by inɒzɘmɒЯ.A.M

@Martin-マーチン ?

Martin - マーチン

Well then don't go about and call an honest mistake as being funny

inɒzɘmɒЯ.A.M

@getafix \o

user161117

lol damn it I came here to talk about chemistry now it's getting all dramatic

inɒzɘmɒЯ.A.M

What is the drama about?

getafix

13:14

cen.acs.org/nobels.html

user161117

Look I said this, "This is a good answer, but unfortunately I wasn't really interested in sp hybridized linear, I meant it in the "straight chain alkane" linear sense where the oxygen and sulfur are likely sp3 hybridized. – Kainui 12 hours ago "

inɒzɘmɒЯ.A.M

Here, lemme unnerve @Mart:

getafix

just stumbled across this graphic

Rigor

Chill out people

Martin - マーチン

I am going to have a weekend now.

inɒzɘmɒЯ.A.M

13:14

Dear @Mart,
Your sausages suck.
Sincerely, MA

user161117

that's about it haha

Rigor

:-)

user161117

I still enjoyed it

inɒzɘmɒЯ.A.M

@Martin-マーチン Still didn't tell me what's going on. ಠ_ಠ

Rigor

Hi pal @StevenGrigsby

inɒzɘmɒЯ.A.M

13:15

WHY ARE YOU PEOPLE AGAINST LINKS?

Martin - マーチン

@inɒzɘmɒЯ.A.M Sorry

inɒzɘmɒЯ.A.M

@Martin-マーチン So, what's wrong?

getafix

@Wildcat o/

Martin - マーチン

I don't want to talk about it. At least not until I calmed down...

getafix

@Ghost o/

Martin - マーチン

13:16

so have fun with the retagging

Wildcat

Hi everyone!

Martin - マーチン

and see you in a couple of days

inɒzɘmɒЯ.A.M

@Martin-マーチン Flip a table. That'll calm you down.

@Wildcat \o

Wildcat

@getafix \o

inɒzɘmɒЯ.A.M

@Martin-マーチン Cya!

Ghost

13:17

hi all!

inɒzɘmɒЯ.A.M

\o to everyone, I can't do it one by one.

getafix

Yeah flipping a table always works.

Jan

@Steve you could have replied to my comment, you know ;)

user161117

Haha I was away

Jan

Enjoy your weekend @Mart ! o/

inɒzɘmɒЯ.A.M

13:17

@Jan ?

Jan

@inɒzɘmɒЯ.A.M just go looking for a question of Steve's ;)

user161117

Besides, I don't think answering you Jan would have helped

inɒzɘmɒЯ.A.M

Why are people suddenly so vague here?

user161117

since you were asking about trigonal pyramidal which wouldn't have clarified it oh well

Wildcat

@inɒzɘmɒЯ.A.M Why are people here? :O

inɒzɘmɒЯ.A.M

13:19

@Wildcat Because of TRE.

Wildcat

@inɒzɘmɒЯ.A.M nope, because of Friday.

inɒzɘmɒЯ.A.M

@Wildcat Yeah, that was the rationale for the time of the schedule.

I wonder if @Bon will make it.

Rigor

Let's get this party started

:D

Jan

@Steve I think it would, because it also touches the two definitions of linear. One being 'a chain of molecules all connected to one preceding and one following' and the other being 'in a straight line'. The opposite of the first one would be pyramidal in SOCl2's case, the opposite of the second one 'bent'.

user161117

maybe, but I didn't interpret it that way so I wouldn't have answered it that way

user161117

13:26

happens, I guess I didn't imagine someone would place oxygen in a linear structure oh well

user161117

like ethers aren't sp hybridized

user161117

it's colloquial to call them 'straight-chain alkanes' I mean hey whatever it's just a simple misunderstanding not the end of the world here lol

Jan

Haha, yeah, but I was planning on answering given your information; but first I was planning on checking my notes from molecular chemistry 2 from the winter term 2011/12 ;)

user161117

Yeah I have sorta had this question in the back of my mind, although not very important to me, it's just it stands out cause when I was taking Ochem 1 several years ago the teacher asked me to come to the board and draw the lewis structure

user161117

and I drew that, and like it checks out naively so he was kinda like

user161117

13:31

idk weirded out haha

bon

@inɒzɘmɒЯ.A.M I almost forgot! Luckily I am doing maths work on my computer right now and I saw your ping :D

Berne

@inɒzɘmɒЯ.A.M

inɒzɘmɒЯ.A.M

@bon Yay!

@Berne Hey!

bon

@inɒzɘmɒЯ.A.M When does it actually start?

skill patrol

HI pals :D

inɒzɘmɒЯ.A.M

13:42

@bon In approximately 109 minutes.

bon

Ok. I'll be there

Todd Minehardt

hi all

Jan

@inɒzɘmɒЯ.A.M Sounds good-ish. Maybe I'll help out, too =3

inɒzɘmɒЯ.A.M

@Jan (づ｡◕‿‿◕｡)づ

@ToddMinehardt \o

Todd Minehardt

hey @inɒzɘmɒЯ.A.M @Jan @bon

inɒzɘmɒЯ.A.M

13:53

I wonder if @Wild kitty will help too.

And @Todd

Todd Minehardt

@inɒzɘmɒЯ.A.M in re: pingability from (La)TeX room, is there something i need to do/set in order to be reachable from there?

Wildcat

@inɒzɘmɒЯ.A.M only if I will be done with DFT :(

Todd Minehardt

hi @Wildcat

inɒzɘmɒЯ.A.M

@ToddMinehardt Just being in the room for the last 7 days.

Todd Minehardt

@inɒzɘmɒЯ.A.M help with what?

Wildcat

13:54

Hi @Todd!

inɒzɘmɒЯ.A.M

9

Q: The Great Retagging Event - Episode 1: The one-taggers

I'm about to set the first event to start this Friday. If you're inconvenient with the time, let me know. I might change the time, or even the day of the start. The event has been $\color{red}{set}$; to 15:30 UTC and will last for 90 minutes. See you there! $\color{green}{\text{May this be a f...

Todd Minehardt

i can do some retagging and will hang out in the latex room, sure

inɒzɘmɒЯ.A.M

So guys, poll: Should we make a separate TRE room or do it in the periodic table? CC @Todd @Jan @Bon @Wild @Skill @Steve

Todd Minehardt

i see we're at 13:55 UTC - so in a little bit, yes?

inɒzɘmɒЯ.A.M

@ToddMinehardt Yes.

Todd Minehardt

13:56

k

skill patrol

Imo keep it here where it is originally scheduled for @inɒzɘmɒЯ.A.M

inɒzɘmɒЯ.A.M

Aha.

Wildcat

yes, keep it here

btw

how do we now that we do not work on the same tag simultaneously?

skill patrol

^

Good question

inɒzɘmɒЯ.A.M

@Wildcat Will be revealed in thirty mins.

i.e. after I'm done with my answer.

Not that it's some black magic.

bon

14:05

Everyone take a different tag?

That seems like the easiest option

inɒzɘmɒЯ.A.M

No.

bon

-1

Q: H2O become H2O2

When water falls from long distance like "water falls" , fall water become H2O2 Hydrogen peroxide, When we churn water in mount I think due to churning H2O become H2O2 because test of water in the mouth we feel like H2O2 pls explain

everyday-chemistry

What?????

$\Large{\mathcal{WHAT?????}}$

inɒzɘmɒЯ.A.M

New answer!

Jan

@inɒzɘmɒЯ.A.M @i dunno,

inɒzɘmɒЯ.A.M

0

A: Why don't polar and non-polar compounds dissolve each other?

TL;DR It's because the enthalpy changes of a solution generally don't favor dissolution. A longer version: To explain this, usually the enthalpy change explanation is given. For the sake of understandability, let's see what happens when two compounds dissolve. Take ethanol dissolving in water ...

What a messy answer.

@Wild @Bon @Skill I wrote my answer above. ^ And now I will inform you about how things will be done in the form of an answer to my TRE meta post.

orthocresol

14:18

@inɒzɘmɒЯ.A.M Hey don't go around writing factually incorrect stuff. That's pseudoscience you know. Just like... cymatics

inɒzɘmɒЯ.A.M

@orthocresol What's pseudoscience?

I mean, what did I write that was pseudoscience?

orthocresol

Your assertion that delta H < 0.

inɒzɘmɒЯ.A.M

Eh?

orthocresol

Haha it's just a typo, I edited it. Sorry to rain on your parade, it is a very nice answer.

inɒzɘmɒЯ.A.M

@orthocresol I might be a bit distracted; please reply . . . oh!

Oh boy, that was . . . whoops.

Thanks anyways @Ortho!

orthocresol

14:21

By the way, if I edit tags, will it give you all a bunch of stuff to review?

inɒzɘmɒЯ.A.M

Yes.

I don't mind reviewing edits.

orthocresol

Oh dear, I'll help next time round then. Let me collect more of that sweet reputation...

inɒzɘmɒЯ.A.M

@orthocresol You only are 122 edits away from getting the edit privilege.

orthocresol

It'd be faster if you just upvoted 23 of my answers :)

inɒzɘmɒЯ.A.M

Oh, BTW, hullo @user1942348! Welcome to the Table!

@orthocresol :o But those damn serial-upvoting mechanisms . . .

bon

14:25

Give me edit reviews! I need that reviewer badge

inɒzɘmɒЯ.A.M

I need that steward badge.

orthocresol

Haha I blame myself because 75% of the time I'm too lazy to type out a proper answer so I just post a short comment.

bon

@inɒzɘmɒЯ.A.M You've got a long way to go yet

inɒzɘmɒЯ.A.M

@bon Not in CVs and First Posts.

orthocresol

@bon @inɒzɘmɒЯ.A.M well if you guys want to review edits then I'm happy to join in later

inɒzɘmɒЯ.A.M

14:27

@orthocresol We'd love you to join in!

bon

@ortho Reviewing edits is pretty fast and I only need 36 more to get my badge

inɒzɘmɒЯ.A.M

@bon You can't get it today then. >:)

bon

14:38

Are we starting?

inɒzɘmɒЯ.A.M

An hour left.

If you're wondering, I'm writing the TRE tips answer.

bon

Oh wait yeah. Daylight saving time means that its 15.30 here already :D

Jan

14:54

Wow, I have four enlightened badges and five nice answer badges on chem. Consequence: Only one of my > 9 answers was not first and accepted. Now I feel proud =3

skill patrol

LOL

inɒzɘmɒЯ.A.M

TRE tips and how-to

3

@Bon @Jan @Ortho @Skill @Whoever wants to participate ^

bon

I wonder if there's someone called @Whoever :D

inɒzɘmɒЯ.A.M

Lemme find out.

@bon We have @WhoElse, but not Whoever.

bon

@inɒzɘmɒЯ.A.M I don't think homework needs removing (in most cases), it just needs other tags as well.

inɒzɘmɒЯ.A.M

15:09

@bon Could be. I still remember some mistags.

bon

Classic conspiracy :)

0

Q: Can jet fuel melt steel beams?

So because of the many conspiracy theories relating to 9/11 I was asking myself if jet fuel can melt steel beams and I need your help. Is it possible that it can melt steel beams under certain circumstances?

energy

Wildcat

@inɒzɘmɒЯ.A.M, so, we are here sitting and waiting for some queries from you? Right?

inɒzɘmɒЯ.A.M

Is everyone ready?

Wildcat

not sure about everyone, but the Cat is ready. :D

inɒzɘmɒЯ.A.M

^ @Bon @Jan @Ortho

orthocresol

15:23

(/¯◡ ‿ ◡)/¯ ~ ┻━┻

Wildcat

GIMME QUERIES! :D

inɒzɘmɒЯ.A.M

Oh haha.

Wildcat

An event is starting in 6 minutes... :P

inɒzɘmɒЯ.A.M

Hullo @Art!

Jan

@bon I thought I saw that question before somewhere =O

Almost ready =D

Loong

15:24

@Jan :

1

Q: How quickly will steel lose structural strength from a heat flash?

I want to know if a sustained jet fuel burn around steel has the ability to make the steel structurally unsound. It seems like any applied heat that effects steel will be a kind of "heat flash": a sudden, and possibly quite short-lived, burst of heat. In this situation, we assume steel has a melt...

heat metallurgy fuel

inɒzɘmɒЯ.A.M

Here's the query: data.stackexchange.com/chemistry/query/368033/… The first tag is homework guyses.

Wildcat

yeah,

but

I've seen that

:(

inɒzɘmɒЯ.A.M

Then let's get starting.

Wildcat

WAIT!

inɒzɘmɒЯ.A.M

@Wildcat How many retags are yours?

Wildcat

15:26

They have captcha there!

And a button

inɒzɘmɒЯ.A.M

Yes, not if you log in with SE.

Wildcat

I'm a Human Being!

inɒzɘmɒЯ.A.M

Oh hullo @Wytha!

Wildcat

But I'm not a human being! XD

inɒzɘmɒЯ.A.M

@Wildcat No you're not. Liar.

Not liar.

Jan

15:27

(/¯◡ ‿ ◡)/¯ ~ ┻━┻ ALRIGHT!

wythagoras

Hello.

inɒzɘmɒЯ.A.M

Guys gimme your number.

Jan

Gimme 20 for starters.

(Tag was homework, right?)

inɒzɘmɒЯ.A.M

@Jan Your first question: chemistry.stackexchange.com/questions/24329

@Jan Yes.

@Jan Your last question: chemistry.stackexchange.com/questions/16008

Next one, please.

Wildcat

@inɒzɘmɒЯ.A.M, meow!

wythagoras

15:29

First one needs physical-chemistry.

orthocresol

20 seems like a good number.

inɒzɘmɒЯ.A.M

Guys you need to tell me how many retags you wanna do.

3

A: The Great Retagging Event - Episode 1: The one-taggers

TRE notes and tips Don't edit closed questions! (This is covered with my query, but just in case) The rationale, if you ask, is an SE slogan saying "$\color{red}{\mathcal{don't~polish~turds}}$". Enough said I guess. Don't edit questions that you voted to close/flagged for closure. For the same ...

Wildcat

Let's start with 20 for everyone.

And see how it goes.

inɒzɘmɒЯ.A.M

OK.

@Wildcat Your first question: chemistry.stackexchange.com/questions/5541

@Wildcat Your last question: chemistry.stackexchange.com/questions/26929

Todd Minehardt

@inɒzɘmɒЯ.A.M - i'll do 20 Homeworks

bon

15:31

@inɒzɘmɒЯ.A.M 20 for me plz

Todd Minehardt

hit me

Wildcat

@inɒzɘmɒЯ.A.M, yes, sir! :D

inɒzɘmɒЯ.A.M

@ToddMinehardt Your first question: chemistry.stackexchange.com/questions/35431

wythagoras

I can also do some retags, but I can't edit without supervision.

Todd Minehardt

ok @inɒzɘmɒЯ.A.M - thanks

inɒzɘmɒЯ.A.M

15:32

@ToddMinehardt Your last question: chemistry.stackexchange.com/questions/37774

Todd Minehardt

@inɒzɘmɒЯ.A.M k

wythagoras

I've read through the tags though

bon

@wythagoras Gimme all those edit reviews :D

wythagoras

Ok. Please also give me 20 questions then!

inɒzɘmɒЯ.A.M

@bon Do the rest, starting from chemistry.stackexchange.com/questions/15706

bon

15:35

Uh loads of calculations to format :(

inɒzɘmɒЯ.A.M

@wythagoras You need to start with organochem tag.

@bon That's why you only have 7 to retag for now.

@wythagoras The second cleanup tag is organic-chemistry. Search for it.

The first 20 results are yours.

@wythagoras Your first question:

18

Q: Ortho-effect in substituted aromatic acids and bases

When comparing o,m,p-toluidine, basicities, ortho effect is stated as a reason why o-toluidine is weaker But, When comparing o,m,p-toluic ccid basicities, ortho effect is stated as a reason why o-toluic acid is stronger acid. Further, I was given the definition that ortho effect is an effect...

organic-chemistry

@wythagoras Your last question:

6

Q: Hydrocarbons with only 4 carbon atoms

How many different organic structures (from the pure theoretical viewpoint) can be drawed with only 4 (exact) carbon atoms and with/without hydrogen? Polycyclic compounds and bridged compounds are also allowed. Please, name them all as well! :) Remark: I have drawed the chemical graphs in a piec...

organic-chemistry

Cracks knuckles It's my turn.

orthocresol

@inɒzɘmɒЯ.A.M ┬──┬╯︵ /(.□. \）

You go first. I'll go after you

inɒzɘmɒЯ.A.M

@orthocresol Oh sorry, I think I forgot you.

@orthocresol Your first question:

6

Q: Why are there different chemical structures for epinephrine (adrenaline)?

The Wikipedia structure is: Note the empty bond at far-right. "Journals on the Web" (w/e that is) has: CH3 added at far-right. And rxlist.com shows: There's an extra H going into the page! Is one of these incorrect, or are they all consistent but w/ some implied bonds or something? Ma...

organic-chemistry

@orthocresol Your last question:

5

Q: Why is glycine hydrochloride more acidic than chloroacetic acid?

I cannot figure out why glycine hydrochloride is more acidic than chloroacetic acid. Could I have figured this out from a pKa table and maybe am just not seeing it? On the table I have in my book (Organic Chemistry, Seyhan Ege, 3rd ed) , neither acid nor its conjugate base are there. Thanks!

organic-chemistry

Todd Minehardt

@inɒzɘmɒЯ.A.M - what's my second question? i'm lost on how to go from my first to the second etc.

inɒzɘmɒЯ.A.M

@ToddMinehardt If you run the query, it's sorted by score.

Todd Minehardt

15:41

@inɒzɘmɒЯ.A.M - did that, looks like @Wildcat grabbed the second one for me :)

orthocresol

Collect your edit reviews quickly guys

Todd Minehardt

just making sure - ran the Homework query

inɒzɘmɒЯ.A.M

Naughty cat!

@ToddMinehardt Well, the score 1 and two score zeros are yours.

Todd Minehardt

got it @inɒzɘmɒЯ.A.M

Wildcat

@inɒzɘmɒЯ.A.M, what's wrong? :O

inɒzɘmɒЯ.A.M

15:43

My turn.

bon

Well that was a long edit for one questio

inɒzɘmɒЯ.A.M

@bon (づ｡◕‿‿◕｡)づ

My first question:

5

Q: why does hydroquinone have non zero dipole moment?

Why does hydroquinone possess non zero dipole moment? The $\ce{OH}$ groups present at para positions on the benzene ring should cancel the effect of each other....if there is a plane change then exactly in which cases molecules do change planes?

organic-chemistry

My last question:

BTW guys watch out for bad titles. CC @Bon @Wild @Todd @Jan @Wytha @Ortho

bon

What should I tag questions which are purely 'How do I do this calculation'? and don't come under any existing tag. E.g http://chemistry.stackexchange.com/questions/15706/density-of-an-object
I want to create a density tag for that really

wythagoras

@bon maybe physical-chemistry for some?

inɒzɘmɒЯ.A.M

@bon Bad title, watch out.

Wildcat

15:51

@bon, don't care too much.

inɒzɘmɒЯ.A.M

@Bon creating tags without a meta post is messy.

Wildcat

This is just another hw question nobody needs except OP.

:D

bon

@inɒzɘmɒЯ.A.M Exactly

inɒzɘmɒЯ.A.M

Guys if you remember to discuss some meta, or want to know how to tag a specific question, use chat.

Kartik

Can anyone suggest where can I learn how to predict the products of reactions?

Here in our school once some teachers came for a demo coaching class and tey said it takes about 5 to 6 days to learn it

inɒzɘmɒЯ.A.M

15:54

@Kartik I close that question as 'too broad'. :P Seriously, that's the very reason for why people learn reaction-mechanism.

Wildcat

@bon, there is also elemental-analysis

but it haz no wiki!

XD

inɒzɘmɒЯ.A.M

@Wildcat The purpose of this event is to clean up junk-ish tags like those.

If we ever need them later, we'll make them again.

Todd Minehardt

i created a physical-properties tag for the density thing @Wildcat

bon

@Wildcat I just noticed that it is new. I vote for deletion because it comes under analytical-chemistry

Jan

@Wildcat I actually created that one but iddn't create a wiki yet.

Okay, I'll re-edit and delete in that case xD

Wildcat

15:55

@inɒzɘmɒЯ.A.M, there are few qs which will fall into this!

Kartik

@inɒzɘmɒЯ.A.M Earlier I also thought its too broad but the teachers from Bansal classes say that they can teach it in 5 to 6 days. Now that is very specific

Wildcat

@Jan, no wait.

wythagoras

Is acid-base really only for acid base reactions?

Wildcat

@Jan, chemistry.stackexchange.com/questions/17178/…

What do you think?

wythagoras

Or can it also include other questions about bases and acids?

inɒzɘmɒЯ.A.M

15:56

@Kartik Come after five or six days and we'll throw you reactions where those rules they teach you don't apply.

Wildcat

@Jan Is it about elemental analysis or non?

not

bon

Also are we ignoring questions with score less than 0

Kartik

@inɒzɘmɒЯ.A.M we had rejected their demo due to their high cost. :(

inɒzɘmɒЯ.A.M

@bon No.

If it's good enough to stay, it should be edited.

Kartik

@inɒzɘmɒЯ.A.M I know the rules dont apply everywhere but at least I will know the basics

Todd Minehardt

15:58

what does this get tagged to? it's chemistry.stackexchange.com/questions/37469/…

Jan

@Wildcat No.

Wildcat

:(

Todd Minehardt

something like numerical calculation?

Wildcat

then i have no idea what your tag means

inɒzɘmɒЯ.A.M

@ToddMinehardt Stoichiometry.

Todd Minehardt

15:58

@inɒzɘmɒЯ.A.M - k

Wildcat

to be honest most hw questions can be deleted altogether

they're mostly useless for site

inɒzɘmɒЯ.A.M

@ToddMinehardt And prolly concentration.

Wildcat

99% of them are about arithmetic essentially

inɒzɘmɒЯ.A.M

@Wildcat That's a different discussion, but a good way to attract contributors in answering thought-out homework.

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