Question

a solution of glucose is 15% by mass calculate the molarity and molality of the solution if the density of the solution is 1.2 gram per ml

Answer 1

15% by mass means 15g in 100ml soln.
molality= no. of moles of solute ÷ mass of solvent in kg.
so... (15 ÷ 180 )×1000÷ mass of solvent = molality.................(1)

now... mass of solvent...= density × volm.
= 1.2× 1000 = 1200
so
.. put in in eqn 1 and find....
plz mark me brainly
.... if you mark me brainly... i will then tell how to find molarity...