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Solution: You have a solution that contains 25 g of an unknown non-ion...

Question

You have a solution that contains 25 g of an unknown non-ionizing polymer in a 250 mL solution of chloroform (CHCl3). The osmotic pressure of this solution at 25C is found to be 0.056 atm. What is the molecular weight of the unknown solid? 

A. 43,500 g mol −1

B. 1,740 g mol −1

C. 10,870 g mol −1

D. 3,650 g mol −1

E. 41,000 g mol −1