How does ionization of a given molecule affect its distribution between the organic and aqueous layer

Ionized molecules will be found in the aqueous layer

Explanation:

The principle of solvent extraction involves the partitioning of a substance between an aqueous layer and an organic layer. The aqueous layer is polar in nature while the organic layer is nonpolar in nature.

All nonpolar substances are found in the organic layer while all polar substances are found in the aqueous layer. Hence, in the aqueous phase, the following species can be found; positive ions, negative ions and neutral polar molecules or ionic substances.

Single ring structure is not associated. Double ring structure is a Purine and single ring structure is a pyrimide so they are two different things. Purine is associated with DNA because the bases Adenine and guanine in DNA are purines.