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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: jkuiphoff on January 27, 2009, 09:36:29 PM

Title: Inter-Molecular Force in Heptane
Post by: jkuiphoff on January 27, 2009, 09:36:29 PM
What IMF's exist in heptane? why?
Title: Re: Heptane
Post by: nj_bartel on January 27, 2009, 09:53:00 PM
what types of imf's are there?  what causes these imf's?
Title: Re: Heptane
Post by: jkuiphoff on January 27, 2009, 09:55:49 PM
yes
Title: Re: Heptane
Post by: macman104 on January 27, 2009, 09:57:49 PM
yes

Hmmm...not quite the answer I think ni_bartel was looking for.

Can you tell us what types of IMFs you have learned about?
Title: Re: Heptane
Post by: jkuiphoff on January 27, 2009, 10:01:05 PM
Dipole-Dipole, London Dispersion, Hydrogen Bonding forces
Title: Re: Heptane
Post by: macman104 on January 27, 2009, 10:03:44 PM
Dipole-Dipole, London Dispersion, Hydrogen Bonding forces
Ok good!  Now, can tell what types of molecules or species interact in each of those types?  Which category does Heptane fit into?
Title: Re: Heptane
Post by: jkuiphoff on January 27, 2009, 10:09:54 PM
Well Dipole Dipole forces exist between neutral polar molecules, but Heptane is nonpolar. Heptane does not contain hydrogen bonding  forces since no H atoms bond with F, O, or N. So I guess Heptane would have london dispersion since it contains non-polar molecules. Would that be correct?
Title: Re: Heptane
Post by: macman104 on January 27, 2009, 10:18:52 PM
Awesome, well done!  And perfect reasoning!