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At 25 degrees Celcius, the density of a 30% aqueous solution by weight of glycerol (C6H8O3)...

At 25 degrees Celcius, the density of a 30% aqueous solution by weight of glycerol (C6H8O3) is 1.071 g/mL. What is the concentration of glycerol in this solution in units of molarity, molality, and mole fraction?

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