Solutions, Molarity and Intermolecular Forces Video Lessons

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Problem: Identify the most important types of interparticle forces present in the solids of BF3?

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Recall that there are several types of intermolecular forces:

1. Ion-dipole interaction – occurs between an ion and a polar covalent compound

2. Hydrogen bonding – occurs in compounds where hydrogen is directly connected to an electronegative element such as N, O, or F

3. Dipole-dipole interaction – occurs between two polar covalent compounds

4. Induced-dipole interaction – occurs when a nonpolar compound interacts with a polar compound

5. Dispersion forces – occurs in all compounds. This is the primary intermolecular force exhibited by nonpolar compounds.


(a) BF3 : Boron (EN = 2.04) goes in the center since boron is less electronegative than fluorine (EN = 3.98). The Lewis structure for BF3 is:


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Identify the most important types of interparticle forces present in the solids of BF3?

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