Question

which is more concentrated one molar or one molal

Answer 1

So, the mass of solvent (i.e. water) is less than 1000 gram. Therefore 1 molaraqueous solution contains 1 mole of solute in less than 1000 gram of solvent . Whereas 1 molal solution has 1 mole of solute in 1000 gram of solvent. Henceconcentration will be more in 1 molar aqueous solution.