solvability vs solubility

solvability and solubility both are nouns.

Word	Noun	Adjective	Verb	Adverb
solvability	Yes	No	No	No
solubility	Yes	No	No	No

As nouns, solvability and solubility are synonyms defined as:

solvability and solubility: the property (of a problem or difficulty) that makes it possible to solve

solvability (noun)	solubility (noun)
the property (of a problem or difficulty) that makes it possible to solve	the quality of being soluble and easily dissolved in liquid
	the property (of a problem or difficulty) that makes it possible to solve
	the quantity of a particular substance that can dissolve in a particular solvent (yielding a saturated solution)