Chemistry Tutorial 6.01b: Polar And Nonpolar Covalent Bonds

[123alainas]

Muchos gracias!! :)

[simon1430]

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[finestchineseboy]

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[XxIchLiebekaulitzxX]

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[drummerboy32495]

4:52 :)

[water5000]

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[lhercr7]

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[MarkRosengarten]

@Momentum7Edits Gotten a lot of offers over the last few years...but what would my own students think if I abandoned them? :)

[Momentum7Edits]

@MarkRosengarten yeh :/ True :/

[biancutie]

our teacher makes us report on these things which is why we can't understand anything because no one is explaining it properly to us. It's a good thing you post these things on youtube or else i would not have understood anything in our chemistry class :)

[MarkRosengarten]

@biancutie What's even better is that the new Race to the Top standards are going to mean that more and more of your teachers are going to be doing things that way...myself included. I'm glad I have these videos, too. Businessmen are telling us how to teach, people who have never stepped foot in a classroom themselves. We have to do what we can to survive this insanity.

[cobalt2black]

can u tell me why CH2Cl2 is a polar bond? isnt the EN difference 0.3 meaning non polar bond?

[MarkRosengarten]

@cobalt2black You can evaluate the polarity of any single BOND, but when you are dealing with the polarity of an entire molecule, it's a different matter. The bonds between C and H are weakly polar, but the bonds between C and Cl are strongly polar.

[TheGnab]

but is covalent bond and nonpolar covalent bond the same thing?

[TheGnab]

i should pay you for giving me a higher grade

[collierw1390]

Someone needs to send this to tosh....like right now

[MsssSmith]

Omg i am dutch and have a dutch teacher and i just didn't get it. I see this explenation once and i get it.. How badly can a teacher suck haha. Thank you youre a great teacher.

[collierw1390]

@MsssSmith

[Uzmadebar4]

WOW THANKS! but. Please answer this cos I'm easily confused - Polar and Polar covalent is the same thing right?!

[MarkRosengarten]

@Uzmadebar4 Yes.

[Uzmadebar4]

@MarkRosengarten Thank You :) I'm from England and my teacher isnt great.. Ive just come across your videos and Ive learnt stufff! yay! keep it up..

[Cutie51309]

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[andrew789987]

his voice cracks at 1:19 lol

[youarestupidxxx]

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[niteshgoa]

You are a very good teacher sir. I was not able to understand polarity when I read my textbook. But you made me understand it in such a simple manner that I now have the confidence of getting full marks at least in this topic. Thank you very much.

[SephoraLove15]

Why did you write just P instead of PC for some of them?

[youarestupidxxx]

@SephoraLove15 i was gna comment that, theyre the same things though right?....

[SephoraLove15]

this is EXCELLENT! :  )

[arolyn05]

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[wfaulk1120]

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[MrLumierre]

I finally understand the concept! I was confused because others taught this without the numerical values of the electronegativity! Thank you very much!

[66yann3]

I have a chem teacher at school that I don't understand because she has an accent.

I have a chem tutor who speaks in a monotone.

I wish my chem teacher was this guy!

[Kash493]

Thank you so much, i finally understand better about Polar and Nonpolar.

[MrThund3r]

saves life

[1006Will]

Hey, I have a question, why does the atomic number increases, the nuclear charge increases as well? Shouldn't bigger radii result in smaller force exerted on the valence electron?

[1006Will]

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[beriligum]

I'm not sure how you get from polar to polar covalent but this really helped me understand. Subscribed!

[CorinaAbcd]

is there a difference between polar and polar covalent?

[EllenGT500]

@MarkRosengarten I was wondering if you have something like Ammonia NH3 does that mean you multiply the Electronegativity value of hydrogen by 3 then subtract the electronegativity of Nitrogen from that answer to determine if it's polar or non-polar?

[chrissytinaa25]

this guys taught me more in the past 8 minutes than my chem teacher for the past semester..

[mendy84knoez]

Was there any reason why, when you were working through the questions near the end of the video, that you wrote that H-C and H-Cl were P (polar) and wrote PC (polar covalent) for H-O? Is there any difference between polar covalent and polar bonds other than the difference in electronegativity? Much appreciated :)

[polkadottedpants]

thank you for helping me because i can't pay attention in class.

[MarkRosengarten]

@tansrn1 1) The polarity of the bond and the polarity of the molecule are different things, 2) I teach in New York State and I am using the New York State Chemistry Reference Tables, which give 2.1 for H. I know it's 2.2, it used to be listed at 2.2, but it's a state mandate so I have to teach it as 2.1

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[chrisstevensjunior]

@tomdenridder otherwise u'll jump him

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@hameed why would he be autistic?

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[jacsoccer7]

why do you call it a molecule when a molecule is a structure of atoms of the same element?

[MarkRosengarten]

@jacsoccer7 An allotrope. O2 and O3, for example!

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[singdancelive363]

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[jason5923]

nice tnx for the video , i'll gonna try to present it in our class :D tnx for the video i got many idea about polar ang non-polar covalent bonds

[jonasgirls2]

I liked this so much that I'm watching it for the third time! JUST FOR PLEASURE(:

[jannita420]

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[krisb781]

if there is 3 elements (ex:H2S) do you add both hydrogens or still use a 2.1-2.5 ratio?

[susnafdfg]

You just saved me! I'm in biology, but for some reason we have a chemistry test tomorrow on chemical bonds, and I went to my school tutor and asked everyone I knew to try and explain this to me. I was completely confused and was over thinking it all. This video just cleared a bunch up for me. Now I feel a lot better about tomorrow's test. Thank you so much Mr. Rosengarten!

[luvlaxlife]

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[AsakuraAvan]

what if the difference is exactly 0.4 would it be polar or nonpolar

[AvgAmericanSpeaks]

@AsakuraAvan 0-0.4 nonpolar, 0.5+ polar. According to NY State standards.

[bukkiy69]

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[TheHiran123]

why only 11.7????

[TheHiran123]

why only 1.7



[xtraflo]

Glad I found your video. You make it so easy to understand. Thanks!!!

[paratroop82504]

man you are awesome....I really wish my professor taught like this...I finally feel like I understand it now. Thanks!!

[beatriceng23]

wt if we dun hv the electronegativity table? how are we gona no wts the difference is?

plz, our skl doesnt use electronegativity table... n i dun get how they determine whether they are polar or nt...

[SlashersProductions]

chlorine is 3.0...

[MarkRosengarten]

@SlashersProductions The New York State Chemistry Reference Tables lists chlorine as 3.2, and since that is the official document on which all New York State assessments are made, that is what I am going by. The Pauling scale lists Cl as having an electronegativity of 3.16. Please cite your reference to support your claim for 3.0. Thank you.

[SlashersProductions]

@MarkRosengarten my reference is the chemistry book im using for as chemistry, but its turned out to be wrong in alot of places just ignore me.

[MarkRosengarten]

@MarkRosengarten Why should ignore you? If you don't question these things, how will you ever learn? Besides which...there was always the chance that MY reference was wrong. That's why I asked for yours, so I could research it. My own work has plenty of typos in it. :)

[donshan123]

@MarkRosengarten If the electronegativity difference is between 0 and .4 then it's non polar. If the electronegativity difference is above .4 then it's polar...But the E.N.D is right at .4, is it still non-polar? Could it be considered polar too?

[MarkRosengarten]

@donshan123 According to New York State, 0.4 is nonpolar. I know other sources that say that only ZERO is nonpolar and anything greater than 0 is polar.

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[abhira81]

Adding the simile of the sharing siblings makes it clearer and easier to remember. Thank you.

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[Clugget]

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[LivviWasHere]

Is H-C and H-Cl also polar covalent like H-O and P-Cl? or is it called just 'polar' ?

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@SupraCelican

And as enthusiastic.

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[jannita420]

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[Afrocanuk]

This guy needs to be careful about what he is saying. He said nonpolar = an electronegativity difference BETWEEN 0 and 0.4. Instead he should have said FROM 0 to 0.4.

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lol, he was having himself a grand old time there...one for you, one for me, one for you, one for me, one for you....

[579fine]

how do you find the electronegativity?

[MichMash94]

@579fine its in the reference table

[irbenson]

u use the ref. table

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