When 2.63 g of a polypeptide is dissolved in 439 mL of water, the resulting solution is found to have an osmotic pressure of 0.125 atm at 37.0 °C. What is the molar mass of the polypeptide? (Assume the volume doesn't change when the polypeptide is added.)

Chemistry: Principles and Reactions
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Problem 51QAP: A biochemist isolates a new protein and determines its molar mass by osmotic pressure measurements....
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When 2.63 g of a polypeptide is dissolved in 439 mL of water, the resulting solution is found to have an osmotic pressure of 0.125 atm at 37.0 °C. What is the molar mass of the polypeptide? (Assume the volume doesn't change when the polypeptide is added.)
 
 
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