The density of a solution prepared by dissolving 120 g urea (mol.M = 60) in 1000g of water is 1.15g/ml the molarity of the solution is?

Question

anonymous · Answer

@Callisto  @waterineyes

anonymous · Answer

i got it!!

anonymous · Answer

120g urea and 1000g water = total mass = 1,120g
What is the volume of this solution:
Density = mass of solution / volume of solution
Volume of solution = mass of solution / density of solution

Volume of solution: 1120/ 1.15
Volume of solution = 974mL

You have 2 mol urea in 974mL solution
Molarity = 2/0.974 = 2.05M

anonymous · Answer

great you need the formula of molarity. Morlarty=moles of solute) / (volume of solution in Liters)