if we know the solute, molarity & density of a solution, which concentration units can be determined?

Question

without any other measurements, I need to know which of the following can be determined; %(w/w), %(w/v), %(v/v)

Answer 1

Molarity is moles/L, which can be converted to %w/v using the molecular weight. L can be converted to kg using the density, which may be kg/L. So that can give %w/w. It's hard to know %v/v, because that implies that the solute is a liquid, like ethyl alcohol. If one mixes 500 mL ethyl alcohol with 500 mL water, the result is 950 mL solution, because the molecules associate more closely in the solution.