Question

* Predict solubility based on hydrogen bonding interactions

Predict electron distribution in a bond from electronegativity

Define the chemical basis of hydrogen bonding.

Identify and construct hydrogen bond donor and acceptor groups

Predict hydrogen bonding potential among various functional groups

Relate hydrogen bonding with solvent water to solubility

Answer 1

1)Predict solubility based on hydrogen bonding interactions:

The solubility of compounds in water increases with increase in hydrogen bond. the hydrogen bond increases the interaction of solute with water.

For example: ether i insoluble in water while ethanol is soluble in water due to hydrogen bond.

2) Predict electron distribution in a bond from electronegativity

The electron distribution will be like the electrons will be more towards more electronegative element than less electronegative element. There will be a partial positive charge on less electronegative element and a partial negative charge on more electronegative element.

3) Define the chemical basis of hydrogen bonding.

hydrogen bond is a chemical bond in which a hydrogen atom of one molecule is attracted to an electronegative atom( F, O ,N ), usually of another molecule.

So the chemical basis is the highly electronegtive nature of F or O or N, as compared to hdyrogen.

4)Identify and construct hydrogen bond donor and acceptor groups:

H-bond donor: the molecules in which an H atom is connected to F or N or O atom.
H bond acceptor: The molecules in which a N O or F with at least one lone pair of electrons are present.