I suck at chemistry but only because of your lectures I got highest garde in my class........you're a life saver bro.....

@rambo6767

2 жыл бұрын

Na kar

i love you man, no bromo

@nichithcn7119

5 жыл бұрын

That's cool

@fromaggio7654

4 жыл бұрын

genious

I'm from Morocco we study in French language But I found your videos more helpful to me to study chemistry and chemical reactions I'm not advanced in English so I'm learning language too in the same time Thank you very much for your efforts and explications They're just great and amazing 😍😊

You are awesome Professor Dave. I understood this in 6mins compared to 1hr with my professor. You just got a new subscriber, thank you!

@hebaalshrany5626

2 жыл бұрын

Watch it into Arabic, sir😔😔😔

we need more teachers like him. AND THATS A FACT

Great videos Dave, as always. Love the IUPAC concept when all the professional heads got together and essentially said: "We'll name everything with a distinct order and use the alphabet to our advantage for simplicity, except when it doesn't suit us, in which case we'll just do this with iso."

This dude should win a Nobel prize for science communication/teaching

@dinl.shznnnnn

12 күн бұрын

agreed

Prof.Dave...You just saved my life

@chocolatechips1183

3 жыл бұрын

I love everything about this guys channel except the intro it gets a little repetitive

@sankalpsana

3 жыл бұрын

@@chocolatechips1183 the intro is also good

These videos are great, you're officially my go-to channel for O-chem :D

why am I finding out about you right now? I wish I had found you before my midterms... well I guess better late than never... Hopefully I can still bring up my grades, I was having the hardest time naming the compounds, thanks for clearing that up! you are amazing!!!

@ProfessorDaveExplains

7 жыл бұрын

make up for it with a killer final exam!

thank you chemistry Jesus, at first my grades were low on chemistry and then I stumbled across your YT channel. I want to say thank you very much! after watching your videos i found out that i learned a lot and i was getting an A on my quizzes and exams. THANK YOU!! YOU'RE A LIFE SAVER.!!

No one in Korea ever explained this explicitly thank you chemistry jesus

amazing, how it becomes possible for you to recite such intricate concepts so clearly.it seems that you are reciting a poem and not chemistry.

Thank you, Prof Dave! Your explanation is easy to grasp. You saved me!

Excellent clear presentation!

Hi, when naming Haloalkanes, I have heard of conflicting rules in terms of which element gets the lower number (if the numbers end up being same from left to right or right to left). In the video, it is mentioned that the “one occurring sooner alphabetically” gets the lower number. But, other places I have heard say that the most electronegative will be assigned to be the lower number. Which way is correct according to IUPAC (alphabetical or electronegativity)?

@ProfessorDaveExplains

5 жыл бұрын

interesting! i had always heard alphabetical, but it is a situation that comes up so rarely that i never even really checked. i would be curious to read something that mentions electronegativity. it seems unlikely, because then the person may have to look up an electronegativity table, whereas alphabeticity is obvious, and the rules are arbitrary after all.

thanks a lot.Keep up this tremendous work.

I whish I could explain things as clear and thoroughly!

Very grateful for you, learned a lot more than what my teacher taught me 🙏🙏🙏 love from India ❤️

so great ! appreciation !

Prof. If one or more than fuctional group attach with chain i e COOH , and CHO what we prefer for numbering please Help?

So Dave do all halogens in a compound naming come before alkane side groups or is it just alphabetical? In the first example u had methyl last just because its alphabeticly last or not? Also in case the methyl was the nearest to the first carbon in the chain would the numerical order go after the methyl group? Thank you!

@ProfessorDaveExplains

7 жыл бұрын

alkyl and halogen have equal priority, so all of them will just be placed in alphabetical order!

You´re the true GOAT man!

Thanks Mr.Dave!

Do we list halogen groups firstly in the name ? Because in the last nomenclature example professor dave just mentioned 6-iodo first despite the fact that hydroxyl group appears first alphabetically

@gimme_a_good_name_bruh

Жыл бұрын

The hydroxyl group must be the most important ie the functional group. The halogens are substituents

@hebashahid8952

2 ай бұрын

it's because of the suffix OL Alphabetically OL would come afterwards

Helpful video and thank you sir ....

Very good explanation

imma need this guy for next year no cap lmao, so im studying now, and once summer ends ill have him

Thanks brother it helped a lot🙏😌

Can you please explain the nomenclature of 1-bromobut-2-ene and why it is not called 4-bromobut-3-ene? Thanks

@ProfessorDaveExplains

4 жыл бұрын

we number so as to give the double bond occurring sooner

Hi Prof Dave! I wanna ask if propan-2-ol and 2-propanol are same? Or they differ? Thank you. You're the best. :)

@ProfessorDaveExplains

5 жыл бұрын

totally synonymous!

@unknownera241

4 жыл бұрын

@@ProfessorDaveExplains one of the KZread rs ......who respects the comments☺☺☺

Thanks!

I love your explanations OH MY GOD, I want to cry. WHY DIDN'T I FIND YOU BEFORE OMGGGGGGG

THANK YOU

5:40 wait, so n and neo are not supposed to be considered for alphabeticity either? just iso?

0:59 wow been a while since I heard anybody use "thusly".. welcome change tho :))

thank you dave

Hi. In the last example, why was iodine named first instead of the hydroxyl group? Sorry little confused with the alphabeticity

@ProfessorDaveExplains

5 жыл бұрын

so a hydroxyl modifies the suffix of the molecule, "ane" becomes "ol", so we name it at the end. things like alkyl and halogen come first but more significant functional groups are part of the parent name

@trizsaballon6198

5 жыл бұрын

@@ProfessorDaveExplains thank u so much!!

thank you prof dave

I know that In numbering a given compound the numbering is in the order functional group > double bond> triple bond > substituents am I correct bro

@rayanfarid7639

3 жыл бұрын

I think triple bond should be numbered sooner than the double bond but other than that it is correct

YOU ARE THE BEST I LOVE YOU

Thanks a million for your videos, u helped me pass chemistry one and two and u still helping me haha, ur videos are great for revision, keep up the good work

You are so helpful! Thank you for explaining things so clearly. You're so good at teaching so much in only a few minutes!

Thank you proffff!!!

you are awesome sir.

Thank you!!!

Thank you, sir, lots of love from India you are awesome 👍

How about sec butyl in alkyl halides?

At 4:28 is it 7-iodo-2-heptanol or 6 iodo 2 hexanol. I see 7 carbons instead of 6

@ProfessorDaveExplains

4 ай бұрын

6 carbons. iodine is not carbon

thank you so much

great man!

This really helped! Thank you!

I thought it would be pentan-2-ol or do both names follow IUPAC rules?

@ProfessorDaveExplains

3 жыл бұрын

yep identical

I have a problem naming the ether compounds.How can we name this compound CH3-O-CH3? And others like these?

@ProfessorDaveExplains

5 жыл бұрын

just name the alkyl groups! that would be dimethyl ether.

@ranjeetsohanpal752

5 жыл бұрын

@@ProfessorDaveExplains Thank you very much sir,but what is the name if the chain is unsaturated like CH2=CH-O-CH3?

Awesome ❤❤❤❤

Hi Dave, I am wondering if there is a specific language alphabet that you use when naming the molecules. For example if we have the 1,3-dibromo-2-chloro-4-ethylpropane molecule and if I'm supposed to write it in swedish instead chloro would be kloro and then I'd have to write 1,3-dibromo-4-etyl-2-kloropropan, would this be correct or do I have to think of the alphabetic order of a specific language, for instancde English?

@ProfessorDaveExplains

6 жыл бұрын

oh interesting! well i think IUPAC set all the rules for the english language only, so i don't really know how it would work in other languages. i would just learn everything in english though, that's the official language of chemistry!

great videos! thank you, they are the best on youtube

Is 2-pentanol and pent-2-ol the same sir?

@ProfessorDaveExplains

7 жыл бұрын

it would have to be pentan-2-ol, then yes that would be the same as 2-pentanol

thankyou

Pro Dave 😮pls I don’t understand that subsistence occurrence 😢

We have been blessed by the knowledge of the chemistry Jesus. Your videos are very helpful .......

What about tennessoalkanes...

Good

1,6-Dibromo-6-methyloctane is incorrect what is the correct name for this? Should I count first to nearest carbon that has many substituent? Help pls

@ProfessorDaveExplains

10 ай бұрын

it sounds right to me

@Mschick3n

10 ай бұрын

That's what I thought too. I've been watching a tutorial, and i still don't see what's wrong in the given name

Can we also write pentan-2-ol?

@ProfessorDaveExplains

5 жыл бұрын

yep!

why the hydroxyl group is prior to halogen group?

@ProfessorDaveExplains

3 жыл бұрын

That's just what the IUPAC decided.

btw your videos are great I haven't understood chemistry so good in a long time

@prithviupadhyay7740

6 жыл бұрын

Daniel Deepak i hate christianity

best professor

sorry sir i write spaling Mistakely type sir now i correct alcohols thank you Sir

Sir please make one video on chemistry in everyday life. it includes medicines. , sweetening and cleansing agent etc

haloolkanes chapter you tell miness i can Understand Sir Excellent Sir thak you soo much bye Sir

what is the major difference between alcohol and aldehyde?functionally ?

@ProfessorDaveExplains

8 жыл бұрын

+wmajed joo totally different. a hydroxyl group can act as a nucleophile, a hydroxyl is about six orders of magnitude more acidic than an aldehyde, an aldehyde is electrophilic at the carbonyl carbon, the list goes on!

@majidalyafai6664

8 жыл бұрын

thank you

Nice sir

Student here! From Philippines hihi

Nice 👍🙂

For heloalkane, which one has higher priority?

@ProfessorDaveExplains

5 жыл бұрын

halogen and alkyl have equal priority

@zhimeiyuan9388

5 жыл бұрын

If we have bromo, chloro and methy on the cyclohexane, which one we usually count first for naming? I know the name will go like bromo- chloro-methycyclohexane. But i dont know. Where i should start

@ProfessorDaveExplains

5 жыл бұрын

check out my tutorial on naming cyclic compounds

What is your favorite halogen?

@ProfessorDaveExplains

6 жыл бұрын

haha i dunno... bromine.

u r the best teacher that i have seen !!!! i tooo..... love u

Dear sir I'm very bad at chemistry as I do not know the basics will I be able to learn all of the basics as I'm in the 11th grade already

@ProfessorDaveExplains

7 жыл бұрын

if you're in high school, you don't need any of this organic chemistry stuff! my general chemistry series should be more than enough. but of course if you are really interested in it, it never hurts to get a head start so that you have an easier time with it in college.

@elyaaa8460

6 жыл бұрын

Actually, I am in Canada and here in the Ontario region if you are studying chemistry in grade 12 this is a unit in the curriculum.

2:50 to 2:54

the debate on james tour brought me here🤣

We only have to say thank's professor you don't need to say thanks at the end of the video.

I want to ask you if you could become my teacher but I also don't want to at the same because the teachers teaching are also good and I'm really the one at fault because I wasn't able to catch up to their teachers and my consistency is also not up to the mark but here your videos helped me a lot. I am pretty unreasonable aren't I?

ارجو ترجمة باقي الفيديوهات مدل الفيديو الاول

Imagine getting high with Prof Dave

@uksquall

3 жыл бұрын

I reckon he makes some decent psychedelics in his spare time, Why else learn organic chemistry.

Extremley good video. Great!!

Hey sir you have a good hair style

4:30

In German you have no o at the end and alkane is without the e

Professor Dave how about bromo vs methyl which one of them are of higher priority?? Thank you:))

@ProfessorDaveExplains

7 жыл бұрын

equivalent! all alkyl and halogen are equal.

@qwertypoiu6156

7 жыл бұрын

Professor Dave Explains oh nooo my professor told me that halogens are rank 6 which have more priority than alkyl. I'm soooo confuse :'))))

@ProfessorDaveExplains

7 жыл бұрын

apologies to your professor, but they're wrong!

@qwertypoiu6156

7 жыл бұрын

Professor Dave Explains So for alkyl and halogen I'll jus follow alphabetic order? THANK YOU

4.22 6 iodo hexan 2 ol

@ProfessorDaveExplains

4 жыл бұрын

you can put the 2 there if you want as well, it's synonymous.

Watching a series of IUPAC Nomenclature System. Who's with me? 🙋‍♀️

🐐

Its 6 iodo hexan2ol not 6 iodo 2 hexanol

@ProfessorDaveExplains

3 жыл бұрын

You can place the number in either location. Most chemists place it before the parent molecule. And if you place it within the word, you need hyphens on either side.

Yep. Still here watching Science videos

Prof Dave 😢

In the last example, wouldn't iodo come after hexanol as 'h' is sooner alphabetically than 'i'?? So the final name would read this way: 2-hexanol-6-iodo...?

@ProfessorDaveExplains

9 жыл бұрын

Vasu Singh the parent name of the molecule is hexanol, so that will go last, after we list all the substituents.

@leowo9

9 жыл бұрын

Professor Dave Explains Ohhh... Yeah. xP Thanks a ton for the fast response! :D

so Jesus was Italian eh?

@unknownera241

4 жыл бұрын

I think so buddy

I feel bad for those who do line structures, the other, more drawn out way makes much more sense.

@ProfessorDaveExplains

5 жыл бұрын

line notation is the only legitimate way to depict organic reactions

@viiperbiite

5 жыл бұрын

@@ProfessorDaveExplains That's all very fine and I don't disagree with you. However, it's not that useful to me because my country's high school exams use what I guess would be called 'fully displayed formulae.' And I suck at chemistry so I'm surprised I've come as far as I have in it at my school.

Oooo