Problem: What kind of intermolecular attractive force is shown in each of the following cases?Picture (c)

FREE Expert Solution

We’re being asked to identify the intermolecular forces present in each compound


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.


For this problem, we will analyze each compound and then determine the intermolecular forces between the two compounds.


For the determination of the type of bond present, we will need to do the following steps:

Step 1: Determine the central atom in the molecule.

Step 2: Calculate the total number of valence electrons present.

Step 3: Draw the Lewis structure for the molecule.

Step 4: Determine the polarity and IMF of the molecule.


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Problem Details

What kind of intermolecular attractive force is shown in each of the following cases?
(i) Two molecules each consist of H fused to F. A dotted line connects the F in one molecule to the H in the adjacent molecule. (ii) Two molecules each consist of F fused to F. A dotted line connects the molecules. (iii) Na+ is joined to the O in H2O by a dotted line. (iv) Two molecules each consist of two Os fused to a central S. A dotted line connects the S in one molecule to an O in the adjacent molecule.

Picture (c)

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