Acetonitrile Ch3cn Is A Polar Organic Solvent That Dissolves A

Acetonitrile (CH3CN) is a polar organic solvent that dissolves a wide range of solutes, including many salts. The density of a 1.80 M LiBr solution in acetonitrile is 0.826 g/cm3. Calculate the concentration of the solution in
(a) Molality,
(b) Mole fraction of LiBr,
(c) Mass percentage of CH3CN?

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