Khan Academy Organic Chemistry
Khan Academy Organic Chemistry
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Carbocation stability and rearrangements
Representing carbocations using Lewis structures and model showing the empty p orbital. Hyperconjugation and rearrangements to form more stable carbocations.
Переглядів: 69 802

Відео

Intro to organic mechanisms
Переглядів 87 тис.7 років тому
Identifying electrophiles and nucleophiles. Showing movement of electrons using curved arrows.
Sn2 mechanism: stereospecificity
Переглядів 47 тис.7 років тому
How nucleophilic attack in Sn2 reaction results in inversion of configuration at carbon with leaving group.
E2 mechanism: stereospecificity
Переглядів 23 тис.7 років тому
How stereochemistry of substrate determines stereochemistry of product in E2 reaction.
E2 mechanism: substituted cyclohexane
Переглядів 17 тис.7 років тому
Using chair conformation and model set to predict product formed in E2 reaction of a substituted cyclohexane.
Sn1 and Sn2: summary
Переглядів 97 тис.7 років тому
How to figure out if a reaction will be Sn1 or Sn2 depending on substrate, nucleophile, and solvent.
Elimination vs substitution: tertiary substrate
Переглядів 18 тис.7 років тому
Determining if a tertiary substrate will undergo E1, E2, or Sn1.
Nomenclature and classification of alkyl halides
Переглядів 62 тис.7 років тому
Common and IUPAC nomenclature of alkyl halides. Primary, secondary, and tertiary alkyl halides.
Stereochemistry of Sn1 reactions
Переглядів 57 тис.7 років тому
Using 3D model to show how enantiomers are formed depending on which side of carbocation gets attacked during Sn1 reaction.
Sn1 carbocation rearrangement challenge problem
Переглядів 24 тис.7 років тому
Example reaction showing Sn1 mechanism where substrate with six membered ring forms five membered ring product via alkyl shift.
Elimination vs substitution: secondary substrate
Переглядів 23 тис.7 років тому
Determining if a secondary substrate will undergo E1, E2, Sn1, or Sn2 by looking at nucleophile and solvent.
Carbocation rearrangement practice
Переглядів 56 тис.7 років тому
Examples of using hydride and methyl shifts to form more stable carbocation.
Identifying nucleophilic and electrophilic centers
Переглядів 202 тис.7 років тому
Definition of nucleophiles and electrophiles. Identifying nucleophilic and electrophilic centers in a molecule.
E2 mechanism: kinetics and substrate
Переглядів 28 тис.7 років тому
Mechanism and kinetics for E2 reaction with strong base. Showing concerted mechanism with H antiperiplanar to leaving group.
E2 mechanism: stereoselectivity
Переглядів 22 тис.7 років тому
Stereoselectivity of E2 reactions. Using Newman projections and 3D models to show antiperiplanar requirement.
Sn2 mechanism: kinetics and substrate
Переглядів 57 тис.7 років тому
Sn2 mechanism: kinetics and substrate
E1 mechanism: kinetics and substrate
Переглядів 45 тис.7 років тому
E1 mechanism: kinetics and substrate
E1 mechanism: stereoselectivity
Переглядів 22 тис.7 років тому
E1 mechanism: stereoselectivity
E1 mechanism: carbocations and rearrangements
Переглядів 35 тис.7 років тому
E1 mechanism: carbocations and rearrangements
Sn1 mechanism: kinetics and substrate
Переглядів 71 тис.7 років тому
Sn1 mechanism: kinetics and substrate
Sn1 mechanism: carbocation rearrangement
Переглядів 45 тис.7 років тому
Sn1 mechanism: carbocation rearrangement
Sn1 and Sn2: solvent
Переглядів 47 тис.7 років тому
Sn1 and Sn2: solvent
Alkene nomenclature | Alkenes and alkynes | Organic chemistry | Khan Academy
Переглядів 33 тис.7 років тому
Alkene nomenclature | Alkenes and alkynes | Organic chemistry | Khan Academy
Structure and classification of alkenes
Переглядів 30 тис.7 років тому
Structure and classification of alkenes
Sn1 and Sn2: leaving group
Переглядів 50 тис.7 років тому
Sn1 and Sn2: leaving group
Alkene stability
Переглядів 55 тис.7 років тому
Alkene stability
E1 mechanism: regioselectivity
Переглядів 32 тис.7 років тому
E1 mechanism: regioselectivity
E2 mechanism: regioselectivity
Переглядів 25 тис.7 років тому
E2 mechanism: regioselectivity
Regioselectivity, stereoselectivity, and stereospecificity
Переглядів 157 тис.7 років тому
Regioselectivity, stereoselectivity, and stereospecificity
Elimination vs substitution: reagent
Переглядів 34 тис.7 років тому
Elimination vs substitution: reagent

КОМЕНТАРІ

  • @StagnantMizu
    @StagnantMizu 14 годин тому

    I find the fact that reduction makes more sense for me on the electrode that loses electrons. I keep mixing these up.

    • @StagnantMizu
      @StagnantMizu 14 годин тому

      and I dont quite understand why positive is gaining electrons electron flow is from - to + so shouldnt we just use that as reference for - and + poles?

  • @Diya-kb5uv
    @Diya-kb5uv 3 дні тому

    Pls continue making these videos......all of my education literally comes from ur videos......

  • @KrishanMohanSingh-y3f
    @KrishanMohanSingh-y3f 5 днів тому

    ow

  • @KrishanMohanSingh-y3f
    @KrishanMohanSingh-y3f 5 днів тому

    Hen

  • @dorukksakurek3580
    @dorukksakurek3580 11 днів тому

    at 11:01 how I learned was that to give an example from the chlorine atom again the 17 protons (positive charges) are trying to attract and keep electrons in the orbital hence the attraction force is actually divided by 18 electrons not 17 . So we have "1 protons force" that attracts 1 electron but on anion, we have "17/18 proton force" per electron.

  • @Manojkumar61956
    @Manojkumar61956 11 днів тому

    That was great, Thanks 👍🏻

  • @chrisyu1024
    @chrisyu1024 12 днів тому

    Are I and III called anomers of each other.

  • @vegone8894
    @vegone8894 13 днів тому

    What does the R represent

  • @ozerobryan1937
    @ozerobryan1937 14 днів тому

    Whose here from 2024 😂😅

  • @jinruihuang8202
    @jinruihuang8202 14 днів тому

    what does n stand for?

  • @viiee8477
    @viiee8477 16 днів тому

    this vedio helped me a lot. Thank U.

  • @yacinebouziane338
    @yacinebouziane338 25 днів тому

    very bad explanation on this one, you're just assuming people know stuff

  • @harinisenthil4068
    @harinisenthil4068 25 днів тому

    Since I Is a catalyst how comes that it is counted for calculating molecularity ? Catalyst are not involved in calculating order and molecularity right ??

  • @advaithaajeyakumar5903
    @advaithaajeyakumar5903 28 днів тому

    Damn this is...AWESOME !!! thanks a lotttttttt man

  • @nitachi820
    @nitachi820 28 днів тому

    Very nice video brother. I need this for my medicine studies in Germany. Grüße aus Deutschland!

  • @celloswiss
    @celloswiss Місяць тому

    "peroid" table?

  • @liljerhomie498
    @liljerhomie498 Місяць тому

    bless

  • @hannahhomerski586
    @hannahhomerski586 Місяць тому

    I appreciate the explanations for the chemistry, but there is no calculator allowed on the MCAT, which makes the calculations very difficult. Is there a way to learn it without a calculator?

  • @Naddygirly
    @Naddygirly Місяць тому

    how do I know the Hz for the different protons (coupling constant)?

  • @grade7science310
    @grade7science310 Місяць тому

    A good explanation . Thank u

  • @dhirajadhikari6918
    @dhirajadhikari6918 Місяць тому

    Abe angrej ke aawald hindi me samjha

  • @sherrymanning1116
    @sherrymanning1116 Місяць тому

    ❤❤❤

  • @ShahzadaShamas-el3ws
    @ShahzadaShamas-el3ws Місяць тому

    What happens after an electron falls from higher energy level to the 2nd energy level? It emits photon...then it must fall to the ground energy level and emits UV. BUT is the photon first emitted still visible?? If yes,then for how much time does it remain visible and for how much time is the spectrum visible?

  • @OfficialLeviReuel
    @OfficialLeviReuel Місяць тому

    GRAH GRAH EVERYTHING K

  • @thatomofolo452
    @thatomofolo452 Місяць тому

  • @BHAVYATAYAL-yr4rk
    @BHAVYATAYAL-yr4rk Місяць тому

    thanks a lot , my concepts are finally looking clear , i can finally connect dots of these quantum numbers

  • @shinn-tyanwu4155
    @shinn-tyanwu4155 Місяць тому

    Very informative 😊

  • @aloeverawang85
    @aloeverawang85 Місяць тому

    Thank you! My textbook was so confusing and the derivation of the equation was not clearly explained anywhere! This made everything click

  • @FiggitClips
    @FiggitClips Місяць тому

    thanks for showing the mechanism really great video.

  • @rassimsimou1594
    @rassimsimou1594 Місяць тому

    Good

  • @framerate1494
    @framerate1494 Місяць тому

    One of your best videos. My teacher never taught this in a way I understood so this clarified all my questions! Thanks

  • @menahakim5169
    @menahakim5169 Місяць тому

    God bless your soul

  • @judyajowers
    @judyajowers Місяць тому

    Who is the lecturer? He is a fabulous teacher!

  • @user-pb3xb4ds6w
    @user-pb3xb4ds6w Місяць тому

    ua-cam.com/video/V9JixmPdeuk/v-deo.html why does the oxygen lose a double bond instead of chlorine becoming a leaving group? and how do we know there's a second step?

  • @carolmedeirification
    @carolmedeirification Місяць тому

    Amazing explanation, thanks!!!

  • @LinaPapadopoulou18
    @LinaPapadopoulou18 Місяць тому

    THE BEST!!!!

  • @ElevateVibes.
    @ElevateVibes. Місяць тому

    wtf

  • @zachariadumas7761
    @zachariadumas7761 Місяць тому

    having this under MCAT prep and using a calculator is mad disrespectful

  • @riyaraj7091
    @riyaraj7091 Місяць тому

    Thanku

  • @vlogsbyfy4038
    @vlogsbyfy4038 Місяць тому

    First 6 minutes was not necessary...

  • @abdollah5276
    @abdollah5276 Місяць тому

    Thank youv❤

  • @sinekonata
    @sinekonata 2 місяці тому

    To be fully rigorous, if Energy is measured in Joules, what exactly does a kJ/mol measure? Unless the mol is not really a unit and could be omitted, it seems to me that a kJ/mol can't be just "energy" but something else.

  • @vickyshifima7101
    @vickyshifima7101 2 місяці тому

    Me

  • @SalomeyAtsrim-Ferguson
    @SalomeyAtsrim-Ferguson 2 місяці тому

    Please i want to know how you got 30 before subtracting it from 40🙏

  • @tanyayasmin6101
    @tanyayasmin6101 2 місяці тому

    Hey I have a doubt that can I draw the NMR spectra without leaving any gap in the baseline ?

  • @luckyminecraftgamer7433
    @luckyminecraftgamer7433 2 місяці тому

    Nyc video

  • @senredux8305
    @senredux8305 2 місяці тому

    what did you do to khan? wheres his body?

  • @bhupalchettri4167
    @bhupalchettri4167 2 місяці тому

    Thank u

  • @muzzammilsajid
    @muzzammilsajid 2 місяці тому

    You could use: MV/n = MV/n n being the moles you obtain fron the balaced chemical equation.

  • @dhruvmittal5156
    @dhruvmittal5156 2 місяці тому

    What a great video keep it up