N3M1Y6

[Mostdope101]

2,4-diethylhexyne at 2:40 minutes in is impossible because the second carbon from the right has 5 bonds.

[TheFrimond]

why do you call it buta-1,3-diene not but-1,3-diene?

[mroneilbaker]

This chem guy is awesome... i learnt alot, wish i had him in my class...

[lrachel2007]

great teacher, that's where i stuck... now i totally got in... thanks

[deepu360]

good

[BorealNeal]

do you have a vid on cycloalkanes? and the naming to be exact

[bannanaiscool]

@BorealNeal On my website, yes!

Chemguy

[rafarodrisala]

You simply misplaced the ethyl group. I mean it should be 3,4 diethyl hexyne. :) I believe that´s it. Well Thanks again, I´m learning from you dude.

[bannanaiscool]

@rafarodrisala Yep...3,4-diethylhex-1-yne, to be precise.

Chemguy

[BenjaminFroberg]

2:43 that name shouldn't it be 2-4diethyl - 1 - hexyne

[killermonster555]

@BenjaminFroberg As explained in his previous video, you don't ever need to put "1" in, as it's assumed when no number is present that the bond (or branch) is off of the first carbon.

[BenjaminFroberg]

@killermonster555

No it's nescesary because it's an alKYNE and all number change if the mulecuul beginst from the other side.

Believe me

[Ballerx230]

hey chem guy, i keep counting 7 in the longest chain?

[girlicious102]

you rockk thanks so much :)

[surbhisonawane]

hey!! i couldn't get any mistake that was done in buta-1,2diene. i guess its right.

and by the way thanks a lottttttttt

[jerobi2105]

Chemguy you are amazing, I don't feel like going to my tutoring session tomorrow!! ... thanks so much :)

[bomberfun1]

At 2:37, wasn't there supposed to be a comma between 2 and 4?

[johnux]

Hey thanks for the videos. I am going to study chemical engineering and I want to minor in organic chemistry. This is really cool. Thanks for the free into/info.

[cutebuttt]

buta-ful !

[jacqulene]

Give the guy a break. When someone has an advanced knowledge of something it gets sort of hairy when they are trying to break down concepts that are already very basic and simple. It's easy to get tripped up in the detailed explanation...

[may201993sa]

i think that the second carbon of the chain shouldn't have that ethyl because that would mean carbon is bonding 5 times instead of 4 plz get bak to me! thnx

[bannanaiscool]

Just look 3 comments down!

Chemguy

[rafarodrisala]

@bannanaiscool L.O.L. poor you. dude.

[Phillamon10]

I think people get confused with hydrocarbons simply cause there are soooo many things to keep track of :) and yes earlier the ethyl on the second carbon shouldn't be there.

[Kyabailey]

Yeah that is wrong. A carbon can't have 5 bonds. But this guy makes my world go round. Thanks chemguy!

[bannanaiscool]

Yep, it's a mistake that I owned up to way down on this page before.  Man, I've got to reshoot this clip! I'm getting killed by the negative press! But thanks for your understanding, Kyabailey!

Chemguy

[youtubalisation]

@Kyabailey you are prone to mistakes which defeats the purpose of teaching. This ain't ur first mistake!

[Zayin1993]

Beautiful.

[laskeet78]

I wish my AP lectures were this interesting.

[AgentMultiSuccess]

In university which form of naming molecules is used more frequently, IUPAC names or common names????

Great videos by the way =D

[THINKARETE]

I love this guy! Wish out chem lecturer would swap places with him - exam Wed... ;-((

[sensation2ve]

i mean the 2,4-diethylhexyne.. the carbon with the 3 bonds, and then there is a bond to the ethyl group and a bond to the other carbon which = 5 bonds..but a carbon can only take 4.. isnt that wrong? or am i wrong?? :-S

[wachichi123]

It really should be 5-ethyl-3-methylhept-3-yne because the longest carbon chain starts at from the bottommost right carbon. However, there is an impossible 5 bonds on the third carbon of the chain.

[Missseeess]

i think its wrong too,

please tell us chemguy!!!

[recycledcereal]

hmm ya that is weird. And wrong. Dunno what to do though

[sensation2ve]

chemguy!! at 2:00 isnt that hexane molecule wrong?? bcz its an alkyl group..and a carbon can only take 4 bonds...tht 2nd carbon is wrong...isnt it??

[Ballerzpro]

i like it better if he makes a mistake and corrects himself. Many students would probably make the same mistake and this will make those students realise how they got it wrong as well.

[hun33y]

how do i know that the triple bond will be on the end of the carbon-hydrogen chain??

[youssie52]

why is it hexene and not hexyne, theres like a triple bond... :s

i'm confused now please help, my ib exams are very soon :(

[mongoose308]

I'm a sophmore in "Pre-IB."

Also, he apologized for the mistake.

Hope you did good on the exams. =)

[klaurent02]

3rd example is wrong/impossible, there's 5 bonds on one carbon.

[kilzmaster]

yes yes, he already apologized for that in the comments

[hcooke123]

that first example is wrong because the C with the triple bond has 5 groups attached to it!!!!!

HA!

[bannanaiscool]

No. That's because there's a buta-1,2-diene.

Chemguy

[appoolshark319]

(1,2)-Butadiene is the correct name.

[normalpeople]

Well, "buta-1,2-diene" and "1,2-butadiene" are EXACTLY THE SAME.

[appoolshark319]

please review your 2004 IUPAC nomeclature. i'm not saying you don't have any knoweledge of the naming of compounds, but the technically correct position of the diene location is in front of the ___-diene.

[ExtraterrestrialA]

instead of buta-1,3-diene....

can i also answer "butadiene"??????

please answer me...

[Dickman61]

Im going to have to agree with

gokumaster101, my org chem professor is foreign and i cant understand a single thing he says! Plz Keep these videos coming!!

[oasisoasis21]

all org chem teacher are foreign

[aznbcu2006]

THANK YOU SO MUCH! i'm in a college chem class and i had no idea what the teacher was doing in lecture until your video. WATCHING ALL OF YOUR VIDEOS MAKES 50 PAGES OF MY CHEMISTRY BOOK MAKE SENSE. YOU my good man, are worth more then the 250 dollars i paid for my chemistry book. thankyou, and keep doing what your doing!

[baptistic]

quite a compliment!

[siddharthshah]

thankyou so much for your videos.

[gokumaster101]

Can't thank you enough chem guy, I honestly believe students in my org class would have a better understanding of O Chem if they fired my teacher and just played your videos.

[bonitachica786]

Thank you so very much for this video, as well as the numerous other ones you have previously posted.

They have helped me immensely with chemistry, and I cannot thank you enough. You're simply amazing, and your teaching style is fun as well as factual!

Keep up the amazing work! You're doing a really great thing by helping everyone with chem and sharing your knowledge! I understand chem a lot more with your teaching!

Thanks once again, and keep posting these awesome videos!!

[young43kid]

thanxx alot u are great

[priyakoko]

amazing@@@@@@@ You are really good!! Thanks for your videos they are GREAT!!!!!!!!!!!!!!

[SwiftWatcher]

Lol i have a Chem Exam in less then two hours... And things i didnt get i get! Thanks chemguy.

[tuffcookie666]

i have a huge exam on monday, and i plan on streaming your videos on repeat all weekend chemguy :) thanks for your help!

[JaoSudz]

Oh man oh man! Your videos are amazing, right now I'm studying for a Organic chem test I have tomorrow and these videos really got me the hang of all this ester stuff. Thanks Chemguy!

[bannanaiscool]

That's the old way, alright.

Chemguy

[RockyBalboa211]

Hello sir, I was wondering if any of your wonderful videos cover alkene reactions? just wondering..

[AbundantNow]

greetings chem guy, my teacher named it 1,3 butadyene is that wrong or the old way? And thanks for your help organic has been kicking my a.

[bannanaiscool]

Hey, Chemguy here, and I can't believe what I did! I put 5 bonds on a carbon, and then named the compound! The hexyne example is all wrong, and I apologize! I even called it hexane!

Man, that was atrocious!

Forgive me,

Chemguy

[rogeliob06]

one the 2,4 diethyhexane, the 2nd carbon from right to left forms 5 bonds. Can u do that??

[nhojmabon]

great videos, sooo helpful

[bannanaiscool]

You better believe it! I will certainly attest that all my mistakes are originally mine!

Thanks for pointing that out!

Chemguy

[cutebuttt]

Sorry to raise another one again ... in your 2-4 diethylhexene you have a triple bond AND two single bonds attached to your second carbon atom, altogether 5 bonds coming form the single carbon atom. Is your teacher going to get angry?