identifying forces

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Deena Doan 2F
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

identifying forces

Postby Deena Doan 2F » Sun Nov 17, 2019 5:03 pm

How do you identify the different forces between molecules?

Rhea Shah 2F
Posts: 97
Joined: Thu Jul 25, 2019 12:17 am

Re: identifying forces

Postby Rhea Shah 2F » Sun Nov 17, 2019 5:10 pm

You have to look at the types of molecules/ions involved. Ion-dipole interaction occurs between ions and a polar molecule. Dipole-dipole interactions occur between polar molecules. London dispersion forces occur between all molecules and ions. Hydrogen bonding occurs between molecules containing an N-H, O-H, or F-H bond.

Eugene Chung 3F
Posts: 142
Joined: Wed Nov 15, 2017 3:03 am

Re: identifying forces

Postby Eugene Chung 3F » Sun Nov 17, 2019 5:37 pm

bond between non-metal and non-metal is usually a covalent bond and between non-metal and metal is ionic bond. Ion-Ion interaction is between ions, the particles with unequal # of protons and electrons (look at charge). Ion-dipole interaction is between ion and someting with partial charge. dipole dipole is usually between 2 polar molecules and hydrogen bond is whenever H bonds with N, O or F. The rank of the strength of these IMFs is ION-ION > ION- DIPOLE> H-BOND > DIPOLE-DIPOLE > LDF


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