The density of a solution prepared by dissolving 120 g of urea (mol. Mass = 60 u) in 1000 g of water is 1.15 g/mL. The molarity if this solution is

Total mass of solution = 1000 g water + 120 g urea = 1120 gDensity of solution = 1.15 g/mLThus, volume of solution = massdensity  =  1120 g1.15  g/mL                                        = 973.91 mL = 0.974 LMoles of solute = 12060=2 molMolarity=moles  of  solutevolumeL  of  solution=2  mol0.974  L=2.05  mol  L−1