Alcohol properties | Alcohols, ethers, epoxides, sulfides | Organic chemistry | Khan Academy

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Alcohol properties. Created by Sal Khan.
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Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules!
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Опубликовано:

21 окт 2024

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Комментарии : 54

@PizzoLab 4 года назад

WHAT YOU LEARNED: 0:28 Why water has a high boiling point: high electronegativity difference between oxygen and hydrogen, alias hydrogen bonds. 2:26 Why alcohols have lower boiling points than water: just one hydrogen bond. 3:25 Why alcohols are soluble in water: hydrogen bonds between alcohol's and water's hydrogen. 6:18 Why longer carbon chains are, less soluble is the substance: carbon chains are not miscible (they can't be dissolved). 7:53 Why longer carbon chains are, higher is the boiling point: van der Waals forces between carbon chains.

@emsulich 6 лет назад

How did humanity even figure this crap out in the first place?

@dynamix8845 4 года назад

😂😂😂

@bertorigoalvarez2887 4 года назад

The Gods, from the Stars mixed there dna with ours

@t.bo.a7061 4 года назад

Trial error and just making a guess and trying to prove it

@roselynnwood4657 3 года назад

Good question I wonder the same

@intellegence63smart 14 лет назад

YOU MADE ME GET 100% ON MY EXAM!

@hanipgileseks 11 лет назад

Khan , you are my new Chemist teacher...

@missaway90 12 лет назад

organic chem has been hard for me all this while,but not now.thankyouu.I couldnt say no more.It's really help to figure all this reactions,

@resipsaloquitur13 11 лет назад

You are a ridiculously good instructor.... i finally get it. i was about to loose it. Thank you!

@ganamohenbento7842 4 года назад

Awesome teacher, thanks for sharing with us.

@reenaacharya3338 7 лет назад

easy revision before a test

@AnthonyVoutas 13 лет назад

London Dispersion forces were something which my teacher in high school took two or more lessons to tell us about and I still didn't understand them, and you explained them in about 30 seconds, and it made perfect sense. School children should just watch your videos instead of going to class!

@aireentoh 12 лет назад

i have an organic test tomorrow!!! this helped a lot!!! thank u very much!

@arzigogolato1 14 лет назад

Let me write that in a brighter colour since is a new word :) I'm studying chemistry because of this!!!

@roselynnwood4657 3 года назад

OK so cute makes u remember ur childhoof

@roselynnwood4657 3 года назад

Ikr*

@conorginty8004 10 лет назад

The Carbon closest to the Hydroxide in the case of Butanol should have 2 Hydrogens bonded to it, not just 1!!

@ironknightzero 13 лет назад

This is great help! Terrific :)

@minoc2 14 лет назад

I love these vids; it is great to wake up and get a chem lesson in the morning. It has been 20 yrs since I took organic. fyi - your butenol is missing a hydrogen. Question: do alcohols act as acids/bases or affect the pH in any way?

@MysticSloth02 Год назад

No, they are neutral

@minoc2 Год назад

@@MysticSloth02 omg. 12 yr old comment gets a reply. lol.

@MysticSloth02 Год назад

@@minoc2 sorry but i was 6 years old 12years ago, due to which i was able to answer your question. But now with sufficient knowledge i ought to share it with my fellow students of life

@curtpiazza1688 Год назад

Great! 🎉

@abigartner12345 9 лет назад

yeah the carbon with the alcohol is missing a hydrogen!!!

@GOMUGOMUNO21 6 лет назад

Abi that or a double bond.

@nyankepi 12 лет назад

thank you so so much!

@Aehraz786 12 лет назад

Please can you upload a video on haloalkanes and haloarenes! please sir, it's a humble request! :-)

@sebastianvettel4717 11 лет назад

In butanol the last carbon which attach to oxygen missing a hydrogen

@dannyboy12357 14 лет назад

I want you see you do video on alcohol after consuming ethonal lol

@awfulowl6461 6 лет назад

Doctor strange taught me a good lesson 😂😂

@resipsaloquitur13 11 лет назад

No. Mass depends on how molecules are arranged in a particular state.

@slamnxgirlxjulie 14 лет назад

wow this is exactly what i'm learning in my chemistry class right now, does it matter if the methyl group is like CH3 or H3C ?

@Frontman15G Год назад

good video

@Quintinohthree 12 лет назад

Practically not. Alkoxides are stronger bases than hydroxide, so they'll immediately deprotonate a water molecule. Alkyl oxonium ions similarly are extremely strong acids and usually have only fleeting existence before they either deprotonate again or lose a water molecule forming a carbocation which can either combine with water to reform the alkyl oxonium ion or with another alcohol molecule to form a dialkyl oxonium ion which can deprotonated to an ether.

@fleshcookie 11 лет назад

Alcohols absolutely participate in acid/base reactions. Your typical non-cyclic alcohol: R-OH has a pKa of 15-18, and water has a pKa of 15.7, which implies a base such as NaOH is not very favorable. Instead a fairly strong base (such as Hydride or Na metal) is needed to deprotonate an alcohol. In general though, When assessing the strength of any acid, one needs to assess the stability of the conjugate base. the most important factors with alcohols are usually resonance, and induction.

@hmercad2 8 лет назад

Very good lecture on Alcohol Properties. Thank you.

@intellegence63smart 14 лет назад

@tran61021 It's not that hard :/ You just have to have good study habits. THANKS KHAN ACADEMY!

@goldensilverstar 13 лет назад

Didnt fuckin get anything, but it still helped in some way lol

@espen180 14 лет назад

@minoc2 Most alcohols have a negligible degree of (de)protonation in water, but phenols, OH groups directly bonded to benzene rings, are acidic in water. Acids can protonate alcohols, and bases can deprotonate alcohols, so in this sense they do have an effect on the H^+ concentration in water.