Any large non polar group will be insoluble in water, for example, very long / branched alkyl chains or aromatic rings without heteroatoms (eg phenyl group).
Glycerophospholipids have a polar head group that interacts with water molecules, making them soluble in water. Triglycerides lack this polar head group, which makes them less soluble in water.
Amides are soluble in water because they can form hydrogen bonds with water molecules due to the presence of a carbonyl group and an amine group. This ability to interact with water molecules through hydrogen bonding allows amides to be soluble in water.
Prussian blue is one of the least soluble pigments, meaning it has low solubility in water and other solvents.
Example: some hydroxides are suluble in water but other aren't soluble.
The charged amino group on the histamine molecule makes it water-soluble. This group can form hydrogen bonds with water molecules, allowing histamine to dissolve in water.
Tryptophan is one of the least soluble amino acids in water due to its hydrophobicity.
If it is not fat soluble, it must be water soluble. Vitamin C and the B group vitamins are water soluble.
Glycerophospholipids have a polar head group that interacts with water molecules, making them soluble in water. Triglycerides lack this polar head group, which makes them less soluble in water.
Water
The OH group makes it slightly water soluble while the carbon group resists solubility. The 3-pentanol molecule is slightly water soluble.
Amides are soluble in water because they can form hydrogen bonds with water molecules due to the presence of a carbonyl group and an amine group. This ability to interact with water molecules through hydrogen bonding allows amides to be soluble in water.
Prussian blue is one of the least soluble pigments, meaning it has low solubility in water and other solvents.
It is very soluble in water: approx. 360 g/L at 20 0C.
Example: some hydroxides are suluble in water but other aren't soluble.
BeSO4 is moderatetly water soluable. It is a metal sulfate compound which is used in water treatment plants. The mhydrogen atom is replaced by a metal compound. Unlike BaSO4 which appears to be water soluable at first but is not.
Carbonates of group 1 elements are soluble in water.
Monosaccharides are soluble in water because they contain hydroxyl groups and either a ketone or an aldehyde group. These polar functional groups make sugars very soluble in water.