Drawing Constitutional Isomers of Alkanes - Organic Chemistry

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  • เผยแพร่เมื่อ 7 ก.ค. 2024
  • This organic chemistry video explains how to draw the constitutional isomers of alkanes such as butane C4H10, pentane C5H12, Hexane C6H12, Heptane C7H14, Octane C8H16 and C2H6O.
    Organic Chemistry - Basic Introduction: • Organic Chemistry - Ba...
    Acids and Bases - Basic Intro:
    • Acids and Bases - Basi...
    Lewis Acids and Bases:
    • Lewis Acids and Bases
    Nucleophiles and Electrophiles:
    • Nucleophiles and Elect...
    Hydrocarbons:
    • Hydrocarbons - Aliphat...
    _______________________________
    IUPAC Nomenclature of Alkanes:
    • IUPAC Nomenclature of ...
    Naming Cycloalkanes:
    • Naming Cycloalkanes Wi...
    Naming Bicyclic Compounds:
    • Naming Bicyclic Compounds
    Naming Ethers:
    • Naming Ethers - IUPAC ...
    Naming Alcohols:
    • Naming Alcohols - IUPA...
    Naming Alkyl Halides:
    • Naming Alkyl Halides -...
    ________________________________
    Naming Amines:
    • Naming Amines - IUPAC ...
    Van Der Waal Forces:
    • Van Der Waals Forces
    Boiling Point of Organic Compounds:
    • Boiling Point of Organ...
    Organic Chemistry PDF Worksheets:
    www.video-tutor.net/orgo-chem...
    Organic Chemistry Exam 1 Playlist:
    bit.ly/3kJnNXU
    Full-Length Videos and Worksheets:
    / collections

ความคิดเห็น • 59

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  ปีที่แล้ว +4

    Organic Chemistry PDF Worksheets: www.video-tutor.net/orgo-chem.html
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    IUPAC Nomenclature - Full 42 Min Video: bit.ly/2XTwQKt

  • @niffniffhooray
    @niffniffhooray 6 ปีที่แล้ว +52

    I've made this mistake so I wanted to clarify for those looking--adding an ethyl group tends to change the chain. For instance hexane. Adding an ethyl group to the a 3-carbon chain just creates a 4-carbon chain with two methyl groups. It looks different at first glance, but you always want to make sure to recount the longest chain. That being said, for heptane there are nine structural isomers.

    • @EvillAnime
      @EvillAnime 8 หลายเดือนก่อน +2

      yep always remember to stop for a few seconds to make sure you're cooking right

  • @afaandewa2693
    @afaandewa2693 5 ปีที่แล้ว +6

    You are awesome.... Helping a lot i don't know how to express it but all i can say you is u r love man ❤️❤️❤️

  • @promiseoromidayo5293
    @promiseoromidayo5293 2 ปีที่แล้ว +3

    You are the best, you just made me understand this topic🙂

  • @niki-mendozacatalan5903
    @niki-mendozacatalan5903 4 ปีที่แล้ว +65

    in 4:16 should it be named 2,2-dimethylpropane?

    • @SelfMadeHundredaire
      @SelfMadeHundredaire 4 ปีที่แล้ว +14

      He did say "2,2-dimethylpropane" but miswrote the name as ~pentane. Good catch though. I was thinking the same thing.

    • @wokkes890
      @wokkes890 3 ปีที่แล้ว +1

      yea i saw it too

    • @adamguerrero5293
      @adamguerrero5293 3 ปีที่แล้ว

      Just caught it as well!

  • @siyanastoyanova1294
    @siyanastoyanova1294 6 ปีที่แล้ว +5

    Really helpful!! Thank you :-)

  • @sillybilly297
    @sillybilly297 5 ปีที่แล้ว +63

    bruh this guy probably eats carbon atoms.....amazing video.

    • @krishkain5083
      @krishkain5083 5 ปีที่แล้ว +3

      sillybilly297 hello

    • @krishkain5083
      @krishkain5083 5 ปีที่แล้ว +1

      Hey silly billy make sure u eat ur goat meat and ur roti

    • @krishkain5083
      @krishkain5083 5 ปีที่แล้ว +1

      Only then u will become molish molish cool guy

    • @NoGameNoLifeBlank
      @NoGameNoLifeBlank 3 ปีที่แล้ว +3

      @@krishkain5083 what weed are you smoking?

    • @judahsharonb270
      @judahsharonb270 2 ปีที่แล้ว +2

      Food is made up of carbon atoms. Therefore, everyone eats carbon atoms. XD

  • @vinr1187
    @vinr1187 5 ปีที่แล้ว

    At 5.32 can we put one group on the top and the other group at the bottom ? rather than two groups on the top ?

  • @IsabellaAmethyst
    @IsabellaAmethyst 6 ปีที่แล้ว +22

    At 4:17 you wrote 2,2-dimethylpentane. Why is it pentane and not propane? You marked 3 carbons on your parent chain

    • @MasterAssassino1
      @MasterAssassino1 6 ปีที่แล้ว +8

      Minor error...you are correct. 2,2-dimethylpropane would be the correct name

    • @ObaidRazi
      @ObaidRazi 5 ปีที่แล้ว +6

      If you notice, he said propane but wrote pentane

    • @itshannahnaturals7621
      @itshannahnaturals7621 5 ปีที่แล้ว

      you are right. there's a small error.

  • @harleyquiinnnn
    @harleyquiinnnn 4 ปีที่แล้ว +5

    7:20 For heptane isnt there the possibility of forming 3- ethylpeptane? Having a five carbon chain with ethyl on the third carbon

    • @amitojsinghgrover2494
      @amitojsinghgrover2494 9 หลายเดือนก่อน

      But then the main chain will change and hence we will get the same name

  • @rubenmontes_
    @rubenmontes_ 6 ปีที่แล้ว

    How come there were any ethyl groups when trying to find the isomers?

  • @linouchka2168
    @linouchka2168 ปีที่แล้ว +1

    thank you so much

  • @tamimrahman9749
    @tamimrahman9749 6 ปีที่แล้ว +1

    Th ank you very much.

  • @samawatahsan
    @samawatahsan 7 ปีที่แล้ว +27

    Heptane has 9 isomers , i think you missed 3 carbon with 2 carbons having 2 carbon branch each , correct me if I'm wrong

    • @jagger247
      @jagger247 6 ปีที่แล้ว +1

      Xerox yh 9 isomers

    • @eyokient4341
      @eyokient4341 3 ปีที่แล้ว

      Yaaa ur right

  • @ewwxaca
    @ewwxaca 5 ปีที่แล้ว

    Thank you so much

  • @haidaralqadim2399
    @haidaralqadim2399 5 ปีที่แล้ว +3

    you are missing 3-ethylpentane, the 9th isomer of heptane

  • @JihadAlAnsari
    @JihadAlAnsari 7 ปีที่แล้ว

    This is amazing thanks mate

  • @JohnCena-nh5eg
    @JohnCena-nh5eg 6 ปีที่แล้ว +1

    are cyclo alkanes consitutional isomer?

  • @jikarumiromoto5911
    @jikarumiromoto5911 4 ปีที่แล้ว +23

    is there a general formula to identify the total number of constitutional isomers?

    • @bayanabdullah7562
      @bayanabdullah7562 3 ปีที่แล้ว +2

      I think this formula it’s work (2^n-4 +1)n:means the number of carbon

    • @jikarumiromoto5911
      @jikarumiromoto5911 3 ปีที่แล้ว +4

      @@bayanabdullah7562 thanks but this formula fails at C8 and higher.

    • @EvillAnime
      @EvillAnime 8 หลายเดือนก่อน

      I would assume that it'd be so complex that there would be no point in learning it

  • @Pooka6231
    @Pooka6231 7 ปีที่แล้ว

    How would you name the 4-carbon isomer for heptane? The C7H16 molecule? I've named the rest for this one...

    • @greekfire7980
      @greekfire7980 5 ปีที่แล้ว

      2,2 Dimethyl-3MethylButane.

  • @vrinda5700
    @vrinda5700 2 ปีที่แล้ว +3

    Can't we add an ethyl isomer in heptane (3-ethylpentane)?

    • @amitojsinghgrover2494
      @amitojsinghgrover2494 9 หลายเดือนก่อน

      But then the main chain will change and hence we will get the same name

    • @EvillAnime
      @EvillAnime 8 หลายเดือนก่อน

      @@amitojsinghgrover2494idk about the name, but that chain isn't shown in the video and it should be possible as a functional isomer
      also it would be 3-ethylpentane because you always choose the longest chain and in this case it's 5

  • @eyokient4341
    @eyokient4341 3 ปีที่แล้ว +2

    You are wrong heptane have 9 isomers but you only write 8 of them, but i admire your work that in great.

  • @JihadAlAnsari
    @JihadAlAnsari 7 ปีที่แล้ว +6

    What about 3 -ethylpentane for c7h16?

    • @daily5minvlogs211
      @daily5minvlogs211 10 หลายเดือนก่อน

      7:25 what about 3-ethylpentane???

  • @jagger247
    @jagger247 6 ปีที่แล้ว +2

    heptane has 9 isomers not 8

  • @paranthamanv5609
    @paranthamanv5609 4 ปีที่แล้ว

    Heptane forms 9 and octane forms 18 isomers

  • @Rose-zg9pu
    @Rose-zg9pu 4 ปีที่แล้ว

    4:06 isn't it called 2,2-dimethylpropane?

  • @hossam_mohamed00
    @hossam_mohamed00 4 ปีที่แล้ว +1

    4:04 are this 2,2-methyl propane or 2,2-methyl pentane

    • @ChemSimplified
      @ChemSimplified 4 ปีที่แล้ว

      Hosam Mohamed It's 2,2-dimethylpropane

  • @ramamwero7398
    @ramamwero7398 ปีที่แล้ว +3

    The third constitutional isomer of C5H12 is 2,2-dimethyl propane,not 2,2- dimethyl pentane as you have illustrated......nice presentation though

  • @user-ri8ps6cl4w
    @user-ri8ps6cl4w 3 ปีที่แล้ว

    4:19 you meant 2,2dimethylpropane

    • @user-ri8ps6cl4w
      @user-ri8ps6cl4w 3 ปีที่แล้ว

      this video is extremely usefull but i think you were not prepared, huge thanks any ways

  • @kaylahrae.
    @kaylahrae. 3 ปีที่แล้ว

    i thought nomenclature cannot be the same

  • @addithehun4044
    @addithehun4044 2 ปีที่แล้ว +1

    when i get my chem degree and make meth- i shall give u some of my millions

  • @kingshorts8442
    @kingshorts8442 2 หลายเดือนก่อน

    daddy

  • @osamaalqnas9138
    @osamaalqnas9138 5 ปีที่แล้ว

    Can you speak arbic please