Chapter 13.2, Problem 1PE

Interpretation Introduction

Interpretation

Iodine will more soluble in water or in carbon disulfide should be identified.

Concept Introduction

Like dissolves like principle: ‘Like dissolves like’ principle says that polar compounds including ionic compound should be more soluble in polar solvent.  Likewise, non–polar compound should be more soluble in non–polar solvent. Other hand, compounds with similar intermolecular force (hydrogen bonding is the principal intermolecular force) capability to soluble in one another because solute-solvent interactions are similar signification to the solute-solute interaction.

Note: Polar solvent should be having O atoms and N atoms with lone pairs.

Example, Methanol and water both are polar molecules. Methanol dissolves in water but Hexane does not dissolved in water because Hexane is non polar.

Polar molecule: Polar molecules have large dipole moments.

Non-Polar molecules: Non-polar molecules have bonded atoms with similar electronegativity results to have zero dipole moments.