A beaker containing 250cm³ of aqueous solution freezes at negative 21°C. The density of the solution is 1.37 grams/cm³. If the solution is 72.1% by weight water, what is the molecular weight of the solute in the solution?

A beaker containing 250cm³ of aqueous solution freezes at negative 21

1.	A beaker containing 250cm³ of aqueous solution freezes at negative 21°C. The density of the solution is 1.37 grams/cm³. If the solution is 72.1% by weight water, what is the molecular weight of the solute in the solution?
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