What is the maximum number of hydrogen bonds that can be formed in a sample containing 1.0 mol (NÅ molecules) liquid HF? Compare with the maximum number that can form in 1.0 mol liquid water.

In one mole of liquid HF, no of molecules is 6.02 x 10²³.

Each molecule forms two hydrogen bonds on an average so no of hydrogen bonds per mol ih HF is

2 x 6.02 x 10²³.

= 12.04 x 10²³.

In water no of hydrogen bonds per molecule of water is 4. So in one mole of water no of hydrogen bonds is

4 x 6.02 x 10²³.

= 24.08 x 10²³.