solubility

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SOLUBILITY

IONIC SUBSTANCES

dissolve in POLAR substances

the ion is pulled away from the ionic (structure) lattice by water molecules

this is HYDRATION. some ionic substances do not dissolve, as electrostatic forces of attraction between ions is too strong.

ALCOHOLS

dissolve in water

due to polar -OH bond

more carbon atoms there are, the less soluble the alcohol will be in water

HALOGENOALKANES

contains polar bonds

dipoles are not strong enough to form hydrogen bonds with water.

the hydrogen bonds between water molecules are stronger than the bonds.

thus, halogenoalkanes are insoluble.

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