The Periodic Table

Caesium-133

00:00

no that fond of math, but I got off the a bad start with my education in math so that's a lot to blame

in calc 2 now and I'm at the point where i don't mind it now

I can see that logic for not liking chem. Although I think to go with 'hate' based on that is a bit much.

DeNiSkA

take a physics class and see you are gonna love it and forget chemistry!!

Caesium-133

eh... idk about the last part of that... I've only been in love with chem for most of my life lol

but I will have phys next semester

DeNiSkA

what you mean by last part?

Caesium-133

next school semester, this fall, I will have a physics class

DeNiSkA

oh!! :\
thats why i see no physics question on your profile!

Caesium-133

00:05

yea lol

Need it for a computer engineering degree. That was my next choice after chem...

DeNiSkA

you have asked many questions on math SE

Caesium-133

yea www'

*lol

DeNiSkA

are you taking degree in chem

like phd or any other

Caesium-133

right now no. I've just mostly done general classes so far, next school year I'm going to have to make up my mind for sure what I'm going for. I want to do the chem but.... computer engineering seems like a better choice, personal interest aside. Thought about maybe dual majoring in chem and computer science instead.

DeNiSkA

are you 27?

Caesium-133

00:10

26. hell, did put in some random shit there too? Ok, I need to fix this stuff.....

DeNiSkA

haha

IͶΔ

05:54

@Caesium welcome to the Table!

It's unfortunate that you met at a time that this chat wasn't active.

@DeNiSkA Well, chemistry hates you too.

@Caesium-133 High five

@DeNiSkA I actually think the physics they teach in schools is uselessly impractical.

At least a sizable portion of the chem they teach is applicable to real chem too.

BTW, dude, what were you doing up 4 in the morning?

DeNiSkA

@IͶΔ yes! i think chem hates me that's why i am not able to understand

IͶΔ

@DeNiSkA Are you on desktop?

DeNiSkA

yes, why?

IͶΔ

You can reply to chat messages by hovering over a message and clicking the bent arrow on the right.

DeNiSkA

oh! i see.....

but i don't want to use mouse !!

@IͶΔ and physics is the subject which demands love i mean everyone to understand physics has to study physics on his own, no third party teacher or school is required to teach!! :\

IͶΔ

06:02

Every subject demands love.

How do you think linguists keep interest in what they do?

DeNiSkA

but chemistry demands time waste !!!(lol)

IͶΔ

So does physics.

So does math, or any other subject.

And I call that devotion, thankuverymuch

DeNiSkA

::*laughs*:: i think you got angry?

IͶΔ

Nope

That's just how I roll

DeNiSkA

oh!! then it's ok
in chemistry we have lots and lots of exception and almost no law is totaly successful in giving its definition

IͶΔ

06:07

That's because they're not laws. Merely guidelines.

Wow:

DeNiSkA

woah woah woah!!!

IͶΔ

So AIWS, stuff like octet are only simplifications.

Get to some real calculations and MO and stuff and see why these stuff don't get exceptions.

DeNiSkA

:\

IͶΔ

Many things in science are oversimplifications.

For instance, you take the magnetic field in a solenoids to be constant.

While it is not.

DeNiSkA

that's just a method to simplify!!

IͶΔ

06:15

In physics, they don't even bother you with the real stuff. So you happily calculate it without considering that the number you're coming up with isn't the right number.

BUT!

When you don't need a more accurate calculation, there's no need to bother yourself with it.

Same goes in math.

But if it does in the case of some easy functions, then why not use it?

L'Hôpital's rule doesn't yield useful results sometimes.

AND

Same goes in chemistry.

DeNiSkA

hey L'Hôpital's rule is just a method to simplify when you see the proof (with integration ) there you can understand why it has a drawback

IͶΔ

Hückel's rule is a good guideline to know which compound is aromatic and which is not in planar cyclic conjugated stuff.

But it fails in the case of coronenes.

Because it's a simplification.

So the only difference is that you also study the quirks to what you study in high school chem, while you don't in physics. That's why high school chem is crappy but is still superior to high school physics IMO.

DeNiSkA

hm!! maybe at high level chemistry may get better but at my level it is just like teaching a monkey to talk

btw don't you have physics as your subject?

IͶΔ

Yes.

DeNiSkA

only classical mechanics or (general relativity and all those super stuff)?

IͶΔ

06:27

Relativity might be a subject next year.

DeNiSkA

then you are going to love physics!! because relativity is damn interesting!

IͶΔ

Interesting, but again, practically useless.

I don't need to know relativity to dilute a solution in lab.

DeNiSkA

lol!!!

but if you want to travel to past you can use relativity(when something great happens)

IͶΔ

The sane me wouldn't want to travel to past. The idle curious me, however.

DeNiSkA

well according to relativity you can't but you can definitely travel to future!!

IͶΔ

06:34

I don't wanna go to future. I wanna make future, man

DeNiSkA

haha!!

so it means you don't have a wish to see what wil happen after 1000000 years after you!

IͶΔ

Yes, I don't.

DeNiSkA

oh! you don't want to travel to other planet?(because loving sun is gonna die)

IͶΔ

In 4 billion years.

DeNiSkA

Now i really think you hate physics!!

IͶΔ

06:39

There's a difference between invoking idle curiosity and knowing something for fun.

There's a difference between knowing something for fun and learning something for fun.

And there's a difference between learning something for fun and learning it because you have to.

Stuff you say are either in the "idle curiosity" thing.

Or "because you have to" one.

They're cool and all, but they never are as cool as "knowing/learning something for fun".

DeNiSkA

well i am not good at roll but i think you are an expert!! _/ _

1 question

IͶΔ

Only one?

DeNiSkA

if i am having an ester as a function group -COCH3 for example why don't i start counting from that carbon attached to CH3 but why i start from the carbon which is attached to that dash (-) symbol

IͶΔ

@DeNiSkA Dash symbol? You gotta choose the longest chain of carbons. That dash means there is more than one carbon, and hence it's the longest chain.

DeNiSkA

just for representation purpose i wrote dash!!
Take this molecule Methyl-2-methylprop-2-en-oate

IͶΔ

06:50

Actually wait. Facepalm

I mixed esters with ethers. I'm getting old.

DeNiSkA

hehe

IͶΔ

In esters, as far as I can remember, you name it as if it's the product of a reaction between an alcohol and a carboxylic acid.

Yeah, that must be it.

The "dashed" carbon is the one for carboxylic acid.

Since it's part of a carbonyl, it belongs to the acid.

And you take the acid as the main chain.

DeNiSkA

but still you have to number the chain

IͶΔ

You should number any chain that you need to.

DeNiSkA

google.co.in/…

and why we start counting with the carbon attached to oxygen not with hydrogen (in COOCH3 in my given compound)

IͶΔ

06:57

Let's start over.

Divide the compound into two parts separated by -O-.

The part that has a double-bonded oxygen is the main chain, and the part that doesn't have it is treated as a substituent.

Are we clear?

DeNiSkA

yes!

IͶΔ

There goes your naming. You can name the compound now, just like how you named alkanes, alkenes etc.

The main chain will end in -ate, since that's how ester anions (like acetate, CH3COO-) end in.

It's like dividing the compound into a cation and anion that peacefully bond.

DeNiSkA

ok !

i think i got it now!!

IͶΔ

chemwiki.ucdavis.edu/Core/Organic_Chemistry/Esters/…

The page above I think might say the same thing, but less scattered.

Yeah, they're saying the same thing.

DeNiSkA

well one more thing suppose in a side chain i am having a double bond then how do you name (give example if availabe)

IͶΔ

07:06

In the new system (as of 2014), I think you just don't do that.

Saturation comes before chain length in the new terminology, no @Loong?

Anyway, assuming you have to stick to 1993 or 2011 rules, @Den, they have their own names.

DeNiSkA

what you mean their own name?

IͶΔ

Methylene group

In organic chemistry, a methylene group is any part of a molecule that consists of two hydrogen atoms bound to a carbon atom, which is connected to the remainder of the molecule by a double bond. The group may be written 2, where the '=' denotes the double bond. This structural element is also called methylidene. Many organic compounds are named and classified as if they were the result of substituting a methylene group for two adjacent hydrogen atoms of some parent molecule (even if they are not actually obtained that way). Thus, for example, methylenecyclopropene is named after cyclopropene...

DeNiSkA

oh!!! i GOT IT!

genius!

IͶΔ

08:31

This is awesome: trumpdonald.org

Freddy

09:11

@IͶΔ Do you want to see something funny?

IͶΔ

Maybe

Freddy

check out loser.com

IͶΔ

Aha well.

Freddy

What do you think about Trump?

IͶΔ

Well, he's another all-talk no-action dude. Big deal.

Freddy

09:19

I feel that for all the current politicians!

IͶΔ

Yeah well, politics is just not something you should like these days.

Or anything affiliated with it

DeNiSkA

09:59

sorry wrong room

user116211

10:18

@IͶΔ: o/

user116211

You changed your avatar!

IͶΔ

\o

I did.

user116211

12:20

@Hippalectryon: Hey, your avatar looks great!

Hippalectryon

@user36790 thanks :-)

IͶΔ

Hmm, isn't it the old avatar?

Hippalectryon

@IͶΔ Indeed. Well, I had another one even before that

user116211

@IͶΔ: Your avatar reminds me of old Power Rangers.

Hippalectryon

@IͶΔ Also, Hi :D

user116211

12:24

IͶΔ

@user36790 Yeah, they look VERY much like each other.

Your avatar reminds me of Van Gogh's paintings @user3.

@Hippalectryon Hullo

user116211

@IͶΔ This is my cute pup; yes he is a master-piece.

Caesium-133

14:13

@IͶΔ Thanks!

IͶΔ

14:42

@Caesium-133 Hullo!

Hullo @Mith

Mithoron

@IͶΔ o/ Iron man style pic

IͶΔ

@Mithoron No not really.

I just saw that these colors match well.

And Iran's flag is green-white-red not green-red-white.

AND

it looks more like a flower this way.

Mithoron

Surprised me, earlier ones wasn't that showy ;)

IͶΔ

I'm showing off

Mithoron

Maybe showy but still nice :)

IͶΔ

14:55

Your eyes are nice

Mithoron

You mean my pic? Seems ok, at least for gravatar

Aditya Dev

15:15

Take a look at this answer: "it is less acidic, because allah made it like that u stupid kuffars." on this question: chemistry.stackexchange.com/questions/9608/…

IͶΔ

@AdityaDev Flag it then.

Aditya Dev

I recommended a deletion on review

IͶΔ

.

Don't bring here subjects that no one likes to discuss.

You brought it to attention, and that was enough.

Aditya Dev

ok

Is it ok if I ask a question about Ice pops on chemSE

1

Q: Flavour retention in ice lollies/pops

Home made ice lollies lose the flavour after some time. You will be left with just ice and small amount flavouring substance. But the ones from shops retain the flavour till the very end. What is the reason for this? Do companies add some chemicals which help in flavour retention? Making the mix...

everyday-chemistry

I can add some pictures to make the question more clear.

IͶΔ

@Mith can you post a message that I can delete please? I'm testing something

Aditya Dev

15:29

Ok

@IͶΔ you can delete the above message.

IͶΔ

Cooooool

Self-hug

@Mart I learned the "delete" spell. This chat isn't safe anymore.

Mithoron

HAHA :D

Martin - マーチン

15:52

@IͶΔ what do you mean with that?

IͶΔ

@Martin-マーチン I know how to delete messages now.

\o @Mart

Martin - マーチン

@IͶΔ Why would you do that?

o/

IͶΔ

Gonna go crazy and all

Martin - マーチン

:28291803 what are you talking about? ;)

IͶΔ

Busy now

I'll retaliate in a while

user116211

16:05

Damn, timeout ;\

user116211

16:20

But I know another way to delete it.

IͶΔ

What, you want help?

user116211

@IͶΔ me?

IͶΔ

Ja

Hullo @Danu! Welcome to the Table!

user116211

@IͶΔ I couldn't ping Danu ;/

IͶΔ

Why not?

user116211

16:34

Martin - マーチン

16:50

Please refrain from retaliating today and tomorrow, I am really busy and on a business trip, I don't want my phone buzzing all the time :) Thank you for your kind understanding.

user116211

@Martin-マーチン me?

Martin - マーチン

Anyone. But mainly Ina. I'll be available for comment on friday afternoon.

user116211

@Martin-マーチン :)

Martin - マーチン

I mean I deserve harassment after I teased him, so I am just asking for a short time out.

user116211

@Martin-マーチン: England are on the verge of losing their first match in the tournament..... stay tuned for cricket is uncertain.

user116211

17:34

And that's it; everything is certain when England is playing; they lost their first match in super 10.

IͶΔ

Why? Is it that they're too weak?

user116211

@IͶΔ No, they are not weak.....

user116211

They don't know winning

IͶΔ

So they're super weak.

user116211

@IͶΔ No; they just don't have the habit to be on the winning side in a multi-national tournament.

IͶΔ

17:47

1 min ago, by IͶΔ

So they're super weak.

user116211

@IͶΔ: Okay, think what you like.

IͶΔ

4 mins ago, by IͶΔ

1 min ago, by IͶΔ

So they're super weak.

user116211

1 min ago, by user36790

@IͶΔ: Okay, think what you like.

Hippalectryon

._.

IͶΔ

22 secs ago, by Hippalectryon

._.

user116211

17:53

....................

IͶΔ

8 mins ago, by user36790

They don't know winning

IͶΔ

18:23

ca.answers.yahoo.com/question/index?qid=20160316110528AAjYo56

You've got to be kidding me. And don't ask how I ended up there.

So this is why human beings are in the verge of extinction.

Hippalectryon

@IͶΔ Eh, at least there's no answer saying "No"

Feeds

21:42

0

Q: Should we burninate the 'iupac' tag?

The iupac tag only has one legitimate usage but I consistently see it misused for questions about IUPAC nomenclature (such as this recent example). Is it really a necessary tag? I seem to spend far too much time removing it from questions where it is unwarranted.

discussion tags

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