Acetonitrile CH3CN is a polar organic solvent that dissolves a wide range of solutes, including many salts. The density of a 1.90 M LiBr solution in acetonitrile is 0.827 g/cm3
a)Calculate the concentration of the solution in molality.
b)Calculate the concentration of the solution in mole fraction of LiBr
c)Calculate the concentration of the solution in mass percentage of CH3CN.