We’re being asked to identify the intermolecular forces present in each compound. Recall that there are several types of intermolecular forces:
1. Hydrogen bonding – occurs in compounds where hydrogen is directly connected to an electronegative element such as N, O, or F
2. Dipole-dipole interaction – occurs between two polar covalent compounds
3. Dispersion forces – occurs in all compounds. This is the primary intermolecular force exhibited by nonpolar compounds.
For this problem, we 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.
**we can skip these steps if the molecule is monoatomic/diatomic or has a simple structure
Classify the species given below by the intermolecular forces present in a pure sample of each:
Ar H2 HCN HF BrCl5 NH3 CH3OH H2S PF5 CH2Cl2
Are they dispersion, dipole-dipole, or H-bond?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Intermolecular Forces concept. You can view video lessons to learn Intermolecular Forces. Or if you need more Intermolecular Forces practice, you can also practice Intermolecular Forces practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Harwood & Towns' class at PURDUE.