Chemistry Tutorial 7.03a: Intermolecular Attractive Forces

Hydrogen bond, dipole, London dispersion forces are all explained here with examples.

Category:

Education

Tags:

• chemistry
• rosengarten
• intermolecular
• attractive
• forces
• hydrogen
• bond
• dipole
• london
• dispersion
• van
• der
• waals

[PureSharpShooter30]

WHy wouldnt you write Hydrogen Sulfide in a linear manner Sulfur-Hydrogen-Sulfur. I forgot all about VSPER, and the rules for drawing molecules.

[MarkRosengarten]

@PureSharpShooter30 Hydrogen sulfide is H2S, not HS2.

[stupidviet]

Really good lesson, but how can a substance have both dispersion and dipole force??

[MarkRosengarten]

@stupidviet Nonpolar molecules have dispersion forces. Polar molecules have dispersion and dipole. Molecules that form hydrogen bonds also have dipole and dispersion forces. The forces are cumulative.

[MrSpaceMind]

Thanks so much for the lesson.

Are not covalent and ionic attractions however, INTRAmolecular forces? Because these act upon atoms within an individual molecule. I just want to make sure I understand this correctly.

[MarkRosengarten]

@MrSpaceMind Yes, chemical bonds are INTRAmolecular, that is they hold atoms together to form a molecule. As opposed to INTERmolecular forces which are just electrostatic attractions of the partially positive end of one molecule to the partially negative end of another. Ionic attractions are not molecular forces, they are pure electrostatic attraction of a negative ion to a positive ion.

[newyorkcitynewyork19]

YouTube is my Chemistry Teacher.

[happyday626]

Wait I thought the melting and boiling points of covalent compounds are usually lower than those of ionic compound...I'm confused :/

[jackhole91]

finally a useful video.

[HoshiHikari]

I thought ionic bonds were strongest because they donate/accept electrons fully, rather than share, as in covalent.

[Schnikerdoodle]

I can't thank you enough. People like you are what keeps me in school.

[7795meganmackenzie]

@newyorkcitynewyork19 I seriously teach myself on youtube and get 100s on tests

[Nazih09]

Thank you!

[YourUltimatum]

Incredible man, thanks for the lesson.

[Diamondgal9693]

Really good vid, thanks so much!!!