Feel the force with intermolecular forces. This video looks at van der waals, dipole dipole and hydrogen bonding complete with a bowl of water?! Intrigued? Take a look for yourself.
Пікірлер: 82
@devsaranga7 жыл бұрын
I used to recall the term Hydrogen FONds to remember the elements involved better. The letters in caps represent the elements. :)
@AlleryChemistry7 жыл бұрын
Sounds good! I love memory aids like this! Really helps others too so thanks for that.
@devsaranga7 жыл бұрын
Allery Chemistry You're welcome. Great videos. :)
@iqrahussain3233 жыл бұрын
Thankyou for this
@farihalubaba08108 жыл бұрын
This is the best KZbin channel for any kind of help in Chemistry! I just hope my AS goes just as good as you explained these bonding! Thank you so much.
@AlleryChemistry8 жыл бұрын
Thanks very much! Just pleased the videos are helping you, that's what they are there for. Hope your exam goes well, my fingers are crossed for you!
@farihalubaba08108 жыл бұрын
You're welcome. Did you make any video on hybridisation? I can't find it. It would be great if you explain hybridisation too. If there is already a video on hybridisation then please attach the link here. Would be a great help! TIA.
@AlleryChemistry8 жыл бұрын
I don't have anything on hybridisation. Do you do CIE by any chance?
@farihalubaba08108 жыл бұрын
Yes. I am going to take my AS level examinations as a CIE candidate in May/June session 2017.
@AlleryChemistry8 жыл бұрын
CIE is the only exam board that does hybridisation as far as I am aware. Good luck with your course!
@tang31515 жыл бұрын
This is better than reading the heavy coursebooks. My cambridge AS chemistry exam is in about 2 hours. Thank you for these videos 👏
@rumayakhatun64416 жыл бұрын
You deserve to get famous. You are really good! Your lectures helped me alot thanks!😀
@cheyennemenda186 жыл бұрын
I don't think you realise how much you have helped me with your chemistry videos. They are all very useful and you mention all the key points and your explanations are understandable. Thank you so much and I will definitely be watching your videos through out my chemistry A levels. Thanks again
@derevenskijparenj7 жыл бұрын
Thank you for the great videos which help me to revise for my AS exams, i have already spread the word about your brilliant youtube videos. P.S. in Topic 2 New AS Edexcel edition there is no video on solubility which is part of the specification, it would be great if you make one.
@AlleryChemistry7 жыл бұрын
You're welcome! Thanks for sharing the videos it all helps to improve understanding of chemistry. I will look into solubility one. Releasing Edexcel revision videos next week so you will see solubility on these ones.
@jokl3y2075 жыл бұрын
Thanks big help, hate how many names London forces have, very annoying
@jayafron50676 жыл бұрын
Am I right in thinking that any molecule has London forces?
@sabah62814 жыл бұрын
This is a great video! Just wondering, why do the London forces increase depending on Mr of the molecule? Is there a reason why it is not electron/proton number? I'm aware this is an old video but hope u see this! thanks
@yusra14292 жыл бұрын
How do you know which molecules have a permanent dipole?
@ramshahali47508 жыл бұрын
How do you know they have a permanent dipole? Is it got to do with the electronegativities ??
@AlleryChemistry8 жыл бұрын
+Ramshah ali Yes it is. If you have a reasonable sized electronegativity difference then you have a dipole. Hope this helps!
Hi +Allery Chemistry I'm slightly confused, the red box says 'The bigger the MR the bigger the the VDW force' Do you mean IMF instead of VDW force?
@Iconic-football2616 Жыл бұрын
Mass per mole of the atom
@johnwallace19507 жыл бұрын
How do we know CH4 has only van der Waals forces? like what are the indicators that differentiates the type of bonding with types of compounds?
@AlleryChemistry7 жыл бұрын
Yes molecules that only have VDW forces are those with very little or no polar bonds. CH4 has no polar bonds significant enough to form any other type of intermolecular force.
@dions.87333 жыл бұрын
Hi, thanks so much for this video. you save the chemical day! just had a small doubt. since the basis of a london force is in the temporariness of its dipole interaction, how can there be london forces in polar molecules? like for instance, in H2O. every bond is polar and has a permanent dipole, so how is it supposed to facilitate *temporary* dipole induction..? idk if that makes sense, but pls let me know. Thanks:)
@talhariyaz17316 жыл бұрын
hi, i love your videos. so clear and easy to understand! i read the PH3 has got permanent dipole dipole imf, can u pls explain why
@saimachoudhury49515 жыл бұрын
Omg that was so clear. Thank you so much!!!
@caitlin49388 жыл бұрын
Cheers for these, great to watch when i need to review stuff! :)
@AlleryChemistry8 жыл бұрын
+Caitlin Brill! Please you find it useful. I have daily multi choice questions for AS Chem on twitter follow @allerytutors to get them. Good luck with your course!
@jadesrandom82537 жыл бұрын
I don't get how do you tell whether it has a delta+ or delta- charge
@AlleryChemistry7 жыл бұрын
Electronegative elements are negative. E.g. Cl F O etc..
@0seunggf9 ай бұрын
Are Van Der Waals force and London Forces the same thing? Or is Van Der Waals = London Force + Induced dipole interaction
@rosaalnds11 ай бұрын
sir , what exactly is the difference between van der waal forces and dipole-dipole forces , because they look the same in a way. thanks
@user12345y5 жыл бұрын
This is awesome 👏🙌. Understood every bit of it 🙊.thanks for these videos sir !
@PabloEscobar-mm2xn3 жыл бұрын
Wappuuuuuuu
@mattyd13924 жыл бұрын
That's a class way to describe vander waals forces
@xFifaSkillzHdx8 жыл бұрын
Thank you for these videos they really help
@AlleryChemistry8 жыл бұрын
+Mike Myers Thanks! Groovy name too! :-)
@MegaJamjam698 жыл бұрын
I finally get it, thank you so much
@AlleryChemistry8 жыл бұрын
+James Smith no problem!
@sea52055 жыл бұрын
Great video, thanks a lot!
@lewis20135 жыл бұрын
When showing bonding between water molecules there needs to be 180° around the hydrogen involved in bonding. H2O------H--------OH. The molecules should also be bent/ non-linear.
@cacbmrghanjera60154 жыл бұрын
Is it possible to draw two hydrogen bonding in two water molecules?? Reason please
@dionapril96315 жыл бұрын
Does this mean that a compound or element that has hydrogen bonding automatically has the other two? Thank you for your videos I'm writing my AS this May, I'm so scared.
@salmanqureshi33616 жыл бұрын
Surely hydrogen bonds should be called hydrogen forces, as they are intermolecular forces?
@katarinawu98938 жыл бұрын
Thank you so much! this helps me a lot!!
@AlleryChemistry8 жыл бұрын
Brilliant! Hope the prop helped when explaining Van der Waals. It's a difficult one to explain.
@mohammadkefah41237 жыл бұрын
"The bigger the Mr the bigger the VDW force" shouldn't it be "The greater the number of protons the greater the VDW force"? I really dont get how the Mr of molecules can affect VDW forces.. Only increasing the protons would increase the number of electrons Please correct me if i am wrong. Thanks for taking the effort to make these wonderful vids.
@AlleryChemistry7 жыл бұрын
VDW is to do with electron clouds not protons. The exam boards will accept Mr/Ar but branching on chains will weaken the VDW force between molecules with similar Mr.
@rubezmiaz97156 жыл бұрын
For the year 2 section of chemistry, my sister was not able to find some of the chemistry topics. Would you please able to make some videos on the last few topics, please. Your a great lecturer, i appreciate what you have done so far, Well Done!
@chrisaryslastofthedragonse88016 жыл бұрын
Thanks for the Video, I have always found this topic a bit confusing. Thanks for clearing it up!!
@ebony9946 жыл бұрын
is this enough detail?
@kinarast2 жыл бұрын
Inaff
@billyrigg75057 жыл бұрын
Hi, do you have a video explaining hydrogen bonding and the elements between which it can occur?
@AlleryChemistry7 жыл бұрын
Yes. Here it is kzbin.info/www/bejne/rYbdnZSAoKiLqNk&app=desktop
@ryon39896 жыл бұрын
Allery Chemistry savage
@JamesMartin-pz3mb6 жыл бұрын
You're such a bloke. Thanks for the videos bru
@nyejubilee27876 жыл бұрын
thank you so much Mr Chris Harris, this was very helpful
@MsDestiny20025 жыл бұрын
thank you very much!
@GorillaFlakes4 жыл бұрын
AMAZING video
@tayyiba.c6 жыл бұрын
11:44 CONSTANT VIGILANCE
@ajeats93216 жыл бұрын
Thank You so much!!!!!
@princess_naadirah99005 жыл бұрын
Thank you 😊
@miraclemuokebe7 жыл бұрын
This was so helpful!
@AlleryChemistry7 жыл бұрын
You're welcome!
@Youssef-xv6dd8 жыл бұрын
Is this the new OCR specification?
@AlleryChemistry8 жыл бұрын
+Youssef Boulal Yes this is suitable for new OCR spec.
@ksi8007 жыл бұрын
london force can exist between h-cl and h-cl? or can it only be in diatomic molecules?
@AlleryChemistry7 жыл бұрын
Yes London forces exist between HCl molecules. There are also Dipole-Dipole interactions too.
@ksi8007 жыл бұрын
Allery Chemistry London force can always cause a pd -pd bonds?
@AlleryChemistry7 жыл бұрын
No. London forces are induced dipole not permanent.
@dickmercs3852 Жыл бұрын
We need more people like you. Thank you sir
@keetanjohal35594 ай бұрын
No way a ripoff nick mercs is commenting lmao W name