Organic Chemistry 11

[manthisiskool]

you just taught me more than my teacher could in a full semester

[S4disticJ0k3r]

Why does the hydroxyl group come off the formic acid if it is a bronsted acid as you suggested it was?

[bannanaiscool]

@S4disticJ0k3r Great question! It does do this, it's kinda weird, and has everything to do with the polarization of the oxygen in that molecule!

Explain in later vids!

Chemguy

[mewanafly]

thanks god i found these videos 4 days before my quiz :D

[TheSliddy1]

HEY, i liked this video until you ruined my accent!

[deadsea2004]

i'm now going to say the names of esters with an english accent... o_O

[TheAJackd]

man!!!! I love you chemguy, your teaching and accents are so amazing!!

[RiceNao]

Educational and entertaining, what more could you want.

[aurestest]

Cool beans

[sidbloom1995]

chemguy we dont have a lab in our school nit even a normal lab.....ester lab is a really far thing..........

[bannanaiscool]

@sidbloom1995 I'm sorry! Too bad; it's such a nice lab!

Chemguy

[satellitetune]

Good job on your video I liked it very much!

[CRISNCHIPS12398]

My class made esters today and we used 18 mol/L sulfuric acid!

[bannanaiscool]

@CRISNCHIPS12398 17.6M, actually!

Chemguy

[violetshadez]

why inst it ethandioic acid I thought you got rtid of the e if it was adjoining to a vowel

[irelandhot]

man, I am gonna take orgo 1 this upcoming summer and just found ur videos. Thanks to you i will know something about orgo before my class starts. you are amazing.

[improvemyenglish]

great, thanks

[oconm9]

I love your videos, thank you! I would be failing my chem class if it wasn't for all your videos.

[CptDoodles]

awesomesauce!!

[idahodriversmanual]

why are chemistry teachers weird.... thanks though

[safywafer]

thank you .. your a life saver!

[JnNGaming]

Thanks for this, maybe another example could of helped more?

[TheLostCloud]

I love you...

[ameerhamza361]

u r great!

[abdullahalmahmood]

dehydration synthesis? cant you just call it a condensation reaction

[bannanaiscool]

@abdullahalmahmood Yes.

Chemguy

[kdarshan4]

hello sir, pls visit to my country INDIA in Mumbai nd teach us dis chemsitry...

i will b very happy if u do so... :)

[munda14]

dnt u people have professors overther....i thought indians were smatter than anyone in the world

[Cheesyrider16]

thank you im a sophmore in a junior chemistry class. and im confused

[minorballer]

i can hear aeroplanes in the background... kinda distractin....... luv da vid altho i had 2 replay it abt 12 times cuz this one is really hard 4 me to understnd.... keep up the gud work and thanks for helpin!!!

[bannanaiscool]

@minorballer No airplanes around here. Hmm...

Chemguy

[foshizzlefizzle]

What's the difference between a condensation reaction and a dehydration reaction?

[bannanaiscool]

@foshizzlefizzle None.

Chemguy

[Clurrabella]

I didn't get to do the experiements for this >.> but I really enjoyed the video :)

P.S Thanks for replying to my earlier comment, I will have to wiki the IUPAC as I hadn't heard of that before :)

[bomberfun1]

Is Alcohol considered OH only or can it also be HO ?

[flunkUtron]

i should have held off on that question i found some reaction videos later in the series. he just gone done thought of everything naw. i gotta get you some cash via paypal chemguy as soon as things pick up for me... i wont forget you!! same goes for the rest of you people give this man some funds, bunch of beatnicks.

[bannanaiscool]

No, no... people have been very nice, and I'm just happy to help. But on March 21, 2010, get ready! Almost 200 more vis coming, reshot in HD! A donation will get them to you organized and ready to study from!

Chemguy

[flunkUtron]

he kinda lost me at the part where he explains how the OH comes off and joins with the alcohol. Im not very good at these organic reactions (or any for that matter). it all seems so random to me. Does he have any good organic reactions videos?

[Kduceee]

Either you're just an amazing teacher or organic chemistry is a lot easier than I've been led to believe.

[icedgreen]

Chemguy is one of my favorite people in the world!!!!

[7liwa]

God bless you & your family. you have helped a mature student from UK. I have watched many of your videos and enjoyed them. you are a fun, great teacher. A refreshing change!! :)

[bannanaiscool]

And may God bless all of your studies, too!  Thanks!

Chemguy

[ThePathmini]

Excellent sir.thnk u now organic chemistry is becoming my favourite subject.MAY GOD BLESS YOU.

[olenfer]

Very good teaching. Thanks!

[BogMonkey53]

Brilliant videos. Thanks for uploading.

[oasisoasis21]

u probably gave a few persons their diploma...im starting a degree in Chem and your vids are great and cleary explained thanx

[alameerLover]

very good (excellent). thanks

[victorianonymous]

love the intonation you put into normally such boring subject matter. thanks!

[mad4eva11]

Really really helpful =) thanx

[manraj4545]

You are a fantastic teacher-thanks for your help

[scottmwyman]

love it, too, funny, but show the board earlier on...can't see, down in front....

[AgentMultiSuccess]

we never did an ester lab in grade 12...apparently the teacher said that he ran out of chemicals for our class & hadn't placed the order yet...we missed out big time...sigh...anyways great videos

[pfeerick]

I'm part of a study group for studying Organic Chemistry, and we think that you've got the name of the Ester wrong

[flowerfaerie087]

No, that's right.... what's wrong with it? :S x

[murattothechosenone]

nope hes right

[Sectorsophia]

I love organics. Thank you for presenting this topic with as much enthusiasm as I have been receiving it with! Will donate someday when I'm making money!

[LordAlda]

It's and acid base neutralization reaction ;-)

Thanks for the great vids, much better than the useless thrash they used to teach at my school.

In my school, they stopped teaching and instead focused on, 'preparing' you for university by making us take notes... even though today universities are all audio visual and powerpoints... and again, thanks.

[LordAlda]

Yielding in Water + a salt (an ester).

[katonaaron]

amazing I wish I was discovered this earlier :(

[gaidee]

LOooooOL

[priyakoko]

i love u

[jaydvast]

Your videos are amazing. Clear, engaging and informative. I'm from the Trinidad and Tobago.

Thank you so much!

[dokeba]

YOU ARE AWESOME - i have a test on monday and thanking to you i really think i'll pass it .... THAAANK YOU FROM CROATIA !!!!

[TimeBomb2]

Lol, thanks~~

[DisabledKoala]

Loving your English accent chemguy. Seriously though thanks all the way from jolly old England lol, your videos are immense.

I'm actually a medicinal chemistry degree student who neglected to do any science while I was in school meaning now i'm actually better at more advanced chemistry than I am at the basics, your videos really helped me to grasp the basic chemistry that was lacking before. Thanks chemguy.

[allymetoo]

This is amazing, Chemguy!!!

[Pieter072]

Thank you so much!! you explain everything so clear and not boring, and it's good for my knowledge of speaking English

[jaide84]

awesome

[ExtraterrestrialA]

thanks for this...=)

i didn't understand much when my teacher discussed this to us...

but please could you provide more examples on esters=)

[bannanaiscool]

It'll end up in the middle of the ester, really.

Chemguy

[hun33y]

Could you explain Normal concentration? From the equation gram equivalents/Volume=N How would you calculate gram equivalents? What is it reallty? would be very helpful, thanks!

[Esvarid]

Dear Chemguy,

Will the carboxylic acid group always be in the end of the ester?

[perifery]

do u have videos for electrochemistry

[sa2uklost]

Thanks chemguy, you're awesome!

[dddancer]

Haha, English accent ;)

[anglee555]

hi can somebody please explain y the acid loses OH and the aclcohol only loses H ? i need the answer ASAP thanxx

[UhTheeNuh89]

i love that it's obvious that you love BOTH chemistry AND teaching!!!

it is so IRRITATING when other professors love chemistry and are (obviously) good at it but have some sort of superiority complex where they actually become annoyed at students who don't understand it as quickly as they arbitrarily think we should! seriously, they actually become flippant and scoff at our confusion!

thanks to you i'm actually becoming excited about a subject i used to despise!! it's really inspiring!!!

[wailangilala]

MANNNN THIS so awesome im having a test of organic chem after next in uni of auckland, and u make it memorable and explain...

ok PLease just keep on doing wat u r doing on youtube pleaseeee

[bannanaiscool]

Well, that's a nice point, but that would mean virtually nothing could be a catalyst, since catalytic concentration might well change in the majority of chemical reactions in aqueous medium. Dilution doesn't change the nature of the molecule; it's still sulfuric acid. Anyhow, esterification is said to be accelerated by "acid catalysis" by all the bigger "chemguys", so I'm just riding their coat-tails on this one!

[nhojmabon]

Hello Rob, thankyou for the videos they are fantastic.

Just a thought, you called sulfuric acid a catalyst. Catalysts should remain unchanged at the end of a reaction right?

Sulfuric acid acts as a dehydrating agent thus the acidic solution becomes more diluted. This means it doesn't remain unchanged at the end of a reaction, so is it really a catalyst?