Molality calculating molar weight from

Stock solutions are typically prepared on a weight percent (PEGs or salts), molar (salts), or molal (salts) concentration basis. Equal aliquots by volume of each stock solution are combined and mixed to yield an ABS. The total system composition can be calculated and the phase compositions taken from the appropriate phase diagram and tie line data. This method of reporting allows the results to be more readily compared with solvent extraction data. 

---