1) Which of the following properties of water can be explained using hydrogen bonding arguments?

1. its ability to dissolve most ionic compounds.
2. its high boiling point.
3. its low vapor pressure

a) only 1 or only 2 or only 3
b) 1 and 2 only
c) 1 and 3 only
d) 2 and 3 only
e) 1 and 2 and 3

I think that all three of the answers are correct? Is this right.

Yes, you are correct. All three properties of water listed can be explained using hydrogen bonding arguments. Hydrogen bonding occurs between the hydrogen atom of one water molecule and the oxygen atom of another water molecule.

1. Water's ability to dissolve most ionic compounds can be attributed to the strong attractive forces between the positively charged ions and the negatively charged ends of the water molecules, which are caused by hydrogen bonding.

2. Water has a high boiling point compared to other similar-sized molecules due to the presence of hydrogen bonds. These bonds require a significant amount of energy to break, resulting in a higher boiling point.

3. Water has a low vapor pressure, meaning it evaporates more slowly compared to other liquids. This is because hydrogen bonding holds the water molecules together, making it harder for them to escape into the gas phase and increasing the tendency for them to remain in the liquid phase.

You're on the right track! Hydrogen bonding plays a significant role in all three of the mentioned properties of water. To explain each point:

1. Water's ability to dissolve most ionic compounds can be attributed to the polar nature of water molecules and the strong electrostatic interactions between the positively charged hydrogen atoms of water and the negatively charged ions of the solute.

2. The high boiling point of water is due to the presence of hydrogen bonding. Hydrogen bonds are stronger intermolecular forces compared to other types of intermolecular forces. They require more energy to break, resulting in a higher boiling point for water.

3. The low vapor pressure is also a consequence of hydrogen bonding in water. Hydrogen bonds restrain the movement of water molecules, making it more difficult for them to escape as vapor. As a result, water has a lower vapor pressure compared to substances with weaker intermolecular forces.

So, considering all of these points, the correct answer is:

e) 1 and 2 and 3