Question

Interpret the solubility of vitamins A and C in water and ligroin in terms of the nature of the intermolecular forces between the molecules and the solvents.

Answer 1

vitamin C is Ascorbic acid and it has hydrogen bonding as water molecules, so vitamin c is soluble in water.

dispersion and hydrogen bonding are the intermolecular forces that act between water and vitamin C.

vitamin C is not soluble in ligroin( petroleum ether, non polar solvent )

vitamin A is fat soluble vitamin and not soluble in water. generally fat soluble vitamins are non polar hydrocarbons.

intermolecular forces are london disperison forces, so each can mingle freely with the molecules of fats in our bodies.