Furthermore, is hydrophobic water soluble?
Water is a polar molecule which means that it carries a partial charge between its atoms. Hydrophobic molecules are molecules that do not have a charge, meaning they're nonpolar. Hydrophobic materials often do not dissolve in water or in any solution that contains a largely aqueous (watery) environment.
Also, is water soluble hydrophilic?
So, although small, hydrophilic molecules are frequently water soluble, solubility plays no part in the definition of "hydrophilic" on any scale or context. Yes, they mean the same thing actually. Such substances are generally capable of forming hydrogen bonding with water, which makes them soluble in water.
Oleic Acid (C18H34O2) is hydrophobic. It is a fatty acid (long hydrocarbon chain with a COO- group at the end). This is a polar group, but again because of the long chain, it is "cancelled out", and the entire molecule is not soluble in water. PO4 -3 (phosphate group) - hydrophilic.