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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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The osmotic pressure of a 3.30 mL solution containing 0.181 g of protein dissolved in water is determined to be 15.50 torr at 22oC. What is the molar mass of the protein?
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- 7) A 300.0 mL aqueous solution containing 0.512 g of an unknown polymer has an osmotic pressure of 32.9 torr at 29.5°C. What is the molar mass of the polymer? 29.5°C +273 =303.5Karrow_forwardAn aqueous solution is prepared by dissolving 1.50 g of hemocyanin, a protein obtained from crabs, in 0.250 L of water. The solution has an osmotic pressure of 0.00342 atm at 277 K. (a) What is the molar mass of hemocyanin? (b) (b) What should the freezing point of the solution be?arrow_forwardA sample of 3.929 g of polystyrene was dissolved in toluene and diluted to a total volume of 100.8 mL. The osmotic pressure of this solution at 25.0°C was 44.56 torr. What is the molar mass?arrow_forward
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- Determine the molality of a 25% sodium thiosulfate, Na2S2O3, solution.arrow_forwardA 15.0 mg sample of a protein was dissolved in water to produce 5.00 mL of solution at 25.1°C. The osmotic pressure of this solution was measured and found to be 6.50 torr. What is the molar mass of this protein?arrow_forward
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