Problem: Water (H2O) and the alcohol methanol (CH3OH) are infinitely soluble in each other. The primary intermolecular force responsible for this is:a. London-dispersion forcesb. Dipole-dipole c. Ion-dipoled. H-bondinge. van der Waals forces

FREE Expert Solution

For this problem, we are being asked to determine the primary intermolecular forces present in H2O and CH3OH

In solutions, recall that the main contributing factor for solubility is intermolecular forces. There are several types of intermolecular forces (IMF):

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

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

3. Dipole-dipole interaction – occurs between two polar covalent compounds; 3rd strongest IMF

4. Dispersion forces – occurs in all compounds and is the primary IMF exhibited by nonpolar compounds; weakest IMF


In this case, we need to do the following steps to determine H2O and CH3OH's IMF

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.

85% (334 ratings)
View Complete Written Solution
Problem Details

Water (H2O) and the alcohol methanol (CH3OH) are infinitely soluble in each other. The primary intermolecular force responsible for this is:

a. London-dispersion forces

b. Dipole-dipole 

c. Ion-dipole

d. H-bonding

e. van der Waals forces

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 Solutions, Molarity and Intermolecular Forces concept. You can view video lessons to learn Solutions, Molarity and Intermolecular Forces. Or if you need more Solutions, Molarity and Intermolecular Forces practice, you can also practice Solutions, Molarity and Intermolecular Forces practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofWater (H2O) and the alcohol methanol (CH3OH) are infinitely ...as low difficulty.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Tomco's class at WAYNE.