molar mass and attractive interactions

(Polar molecules, Non-polar molecules, etc.)

Moderators: Chem_Mod, Chem_Admin

Abigail Menchaca_1H
Posts: 104
Joined: Sat Sep 07, 2019 12:19 am

molar mass and attractive interactions

Postby Abigail Menchaca_1H » Sun Nov 10, 2019 7:29 pm

Why does the increase in molar mass lead to stronger attractive interactions?

Myka G 1l
Posts: 100
Joined: Fri Aug 30, 2019 12:17 am

Re: molar mass and attractive interactions

Postby Myka G 1l » Sun Nov 10, 2019 7:32 pm

The larger a molecule is, the more electrons it has to participate in induced dipoles and also has a greater surface area for these interactions to occur.

John Arambulo 1I
Posts: 58
Joined: Sat Jul 20, 2019 12:15 am

Re: molar mass and attractive interactions

Postby John Arambulo 1I » Sun Nov 10, 2019 7:34 pm

An increase in size and molar mass means that there is more surface area for the atoms/molecules to have London dispersion forces. Although instantaneous and short-lived, the interaction is stronger with larger atoms and molecules because there are more electron distortion and polarizability of of electrons which would make more attractive fluctuating dipoles.

Kimberly Koo 2I
Posts: 99
Joined: Sat Aug 17, 2019 12:17 am

Re: molar mass and attractive interactions

Postby Kimberly Koo 2I » Sun Nov 10, 2019 7:37 pm

When molecules are larger and have a higher molar mass, then they have more electrons, which means that they have more attractive interactions.


Return to “Determining Molecular Shape (VSEPR)”

Who is online

Users browsing this forum: No registered users and 5 guests