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When 2.63g of a polypeptide is dissolved in 257mL of water, the resulting solution is found to have an osmotic pressure of 0.125 atm at

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When 2.63g of a polypeptide is dissolved in 257mL of water, the resulting solution is found to have an osmotic pressure of 0.125 atm at 37.0C. What is the molar mass of the polypeptide? (Assume the volume doesn't change when the polypeptide is added.)

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