/sci/ - Science & Math

Figures.

H is for hydrogen.

>>4132324
121 David Lawrence

cya soon muffin

>>4132367
Thanks, I had no idea.
>>4132373
Who? What?

When in doubt, write the balanced equation. It should net you something. Go from there, 99% of general chemistry boils down to equilibrium

Organic chem & you didn't study, then you're a nigger

Analytical & Physical chem, you should know better by now

>>4132397
General chemistry.
I've already got pretty much everything down.
I was just wondering if the brilliant minds here could teach me something spectacular that I could write on my final assignment as a way to impress the teacher.

This was your plan? Whoops you fucked up.

>>4132433
Yeah, fuck me for thinking anybody on the math and science board would know anything about chemistry.
Chemistry has nothing to do with science.

is there anything you need help with?

>>4132466
go read your textbook nigger

is there anything you need help with? i took my final last wednesday

>>4132500
I don't need help with anything. I just wanted to learn something new. I figured /sci/ would be the place to go.

>>4132513
You seem to know a thing or two about chemistry.
Either that or you took an extremely easy class.
What's the most interesting thing you've learned about the whole semester?

>>4132515
i forgot my chem 1 epeen wanking picture... anyway,

just remember chemistry is like baby physics. none of it is challenging; everyone around you is just stupid. if you reworked all of your previous exams you should be golden and be sure you're at least somewhat competent with new material (if you had any on the final).

just curious, what chemistry textbook did you use?

>>4132550
I'm at a two-cent community college, so they didn't assign us a textbook. We've got a three ring binder full of hole-punched papers instead.
Russo & Silver for Kirkwood Community College if it matters.

>>4132513
Wooh. Phoenix Online is serious business!

>>4132581
Shut your filthy two-cent piece of fucking whore mouth.

Do you know moles? Then you have learned everything chemistry has to offer.

>>4132598
Moles ≠ everything about chemistry.

>>4132513

>>4132528
lots of things man. i never paid attention in high school chemistry so everything was pretty much new. one of the most interesting things of the semester was probably intermolecular forces (and how that applies to real life, ie plastics). i guess i never really thought about it before.

the reason i asked about a textbook is because in my crap ass textbook, there were some sections called "chemistry in your day" and i loved them all. one that remains with me is about how soap works to remove grease/oil from your hands. oil is a nonpolar molecule and water is polar, therefore water cannot remove a lot of oil from your hands. soap is a nonpolar molecule, that's why it can remove it. thinking about these applications of certain concepts to our daily lives (like how chlorine in a pool works, or rust, or laundry detergent, etc) is really awesome.

oh and another thing that was awesome about the semester was atomic spectroscopy. you can seriously create roygbiv with a lighter and a few elements and that is absolutely mindblowing.

>>4132604
>buttmad chemistry major
I guess you guys can help with nuclear reactors as well.

Oh wait.

Gallium is now being tested for uses in anti-aircraft technology because it bonds with aluminum, weakening it's structural integrity.
Yes, many aircrafts still use aluminum.
Also, don't use this knowledge to fuck shit up.

>>4132605
It was rounded you roody-poo.
>>4132610
>oh and another thing that was awesome about the semester was atomic spectroscopy. you can seriously create roygbiv with a lighter and a few elements and that is absolutely mindblowing.
What the fuck is this shit? We never covered that.
Pic very much related. Give me the tl;dr version?

Quick, OP! Define sigma bonds and pi bonds!

>>4132630
This is interesting. Thank you.
>>4132619
I'm not a chemistry major, but alright.

>>4132636
1.A sigma bond is just a single bond.

2.When you have a double bond, you have 1 sigma bond and 1 pi bond.

3.When you have triple bond, you have 1 sigma bond and 2 pi bonds.

>>4132632
> rounded
> 101
> 100

>>4132641
Scratch that, we covered them with different names.

>>4132636
We never covered these.

>>4132649
What were the names you were taught?

>>4132656
>1.A sigma bond is just a single bond.
Single bond.
>2.When you have a double bond, you have 1 sigma bond and 1 pi bond.
Double bond.
>3.When you have triple bond, you have 1 sigma bond and 2 pi bonds.
Triple bond.
>>4132648
Obvious troll.

>>4132669
wait?
why are you saying my
>1.A sigma bond is just a single bond.
statement(s) is/are false/trolling?

>>4132669
Your an idiot. L2Chem

>>4132694
Not your statements. Mr. I-Never-Learned-How-To-Round-Properly's statements.

>>4132581
http://www.youtube.com/watch?v=jJvS4uc4TbU

>>4132636
lol hybridization was the by far the most challenging material of the course. let's test op's knowledge. i pulled one of my exam's and here's a question.

given the following sturcture (see pic, excuse the stupid ass pen tool thing; ms paint is dog shit)

a) how many sigma bonds are present?
b) how many pi bonds are present?
c) determine the type of hybridization and molecular shape at the following indicated locations.

i)
ii)
iii)

http://chan()archive.org/4chan/sci/10847/school-related-infographics
http://chan()archive.org/4chan/sci/10847/school-related-infographics
http://chan()archive.org/4chan/sci/10847/school-related-infographics
http://chan()archive.org/4chan/sci/10847/school-related-infographics
http://chan()archive.org/4chan/sci/10847/school-related-infographics
http://chan()archive.org/4chan/sci/10847/school-related-infographics
http://chan()archive.org/4chan/sci/10847/school-related-infographics
http://chan()archive.org/4chan/sci/10847/school-related-infographics

>>4132695
>Your an idiot. L2Chem
You're is what you should've used there.
More trolls.

>>4132710
> You're is what you should've used there.
> You are is what you should have used there.

What? Fail.

>>4132706
Your picture looks like it was "drawn" with feces on toilet paper.
Use some other program to draw it or find a picture of a random compound online.
>>4132707
Thanks!

>>4132714
I don't fail. You fail, stuipd troll. Now go away.

>>4132714
Oh for cryin' out loud.
Teach me something about chemistry that I don't know or find something better to do with your time.

>>4132724
Hey fake Leeroy. Get your shit out of here. I'm tryin' to learn shit.

>>4132724
Posting as me? Pathetic.

>>4132733
Oh for fuck's sake. I give up.
At least this one can spell though...

I see there are people here with nothing better to do so I'll resort to a trip for now. Thanks so much for the contributions. Anyone else with some interesting chemistry pointers, please feel free to share.

>>4132742
...

>>4132742
As far as impressing your instructors, make sure you checkout Wolfram's General Chemistry bit. Very good stuff here: http://demonstrations.wolfram.com/topic.html?limit=20&topic=General+Chemistry

>>4132768
Very interesting...

>>4132768
Very nice. Thank you. I will definitely spend some time here.

>>4132720
it's about the equivalent to being hand-drawn. the characteristics of the structure are legible and comprehensible, therefore you are successfully dodging the question.

however, me being the curious guy i am, i want to see if you can even do a simple hybridization question.

given the following sturcture (see pic)

a) how many sigma bonds are present?
b) how many pi bonds are present?
c) determine the type of hybridization and molecular shape at the following indicated locations.

C)
N)

>>4132768
Very interesting. Thank you!

>>4132780
On the CH3, I see three single bonds, no double bonds, and it would form a pyramidal shape.
>sturcture
structure

>>4132780
3 Hydrogens are bonded to the Carbon (3 bonds) and there are 2 Hydrogens bonded to the Nitrogen (2 bonds) The methyl is bonded to the amino structure (1 bond) so you have a total of 6 bonds.
A covalant bond is a bond between any two molecules that share a bond also share electrons. An ionic bond is a bond between a metal and a non-metal. There are no ionic bonds because there are no metals present. So all the bonds are covalent.

>>4132807
I didn't click on the picture, so I didn't see the rest of it.
Are you trying to teach me something interesting that I don't already know about chemistry or are you trying to give me a pre-final quiz?

>>4132819
If you haven't noticed, I'm done with the troll games and I'm really trying to put forth effort into some additional learnin' here. This isn't funny anymore.

>>4132830
Alright. I appreciate that. All I'd really like to know right now is something that isn't generally covered in a chemistry class that still relates to chemistry. I'd like to wow my teacher a bit.

Sure is samefag in here.

>>4132836
>>4132830
>>4132819
>>4132807
>>4132802

>>4132847
Yeah, well at least I've got chicken.