Determine the molar mass of a solute from osmotic pressure. In a laboratory experiment, a student found that a 176-mL aqueous solution containing 2.408 g of a compound had an osmotic pressure of 21.3 mm Hg at 298 K. The compound was also found to be nonvolatile and a nonelectrolyte. What is the molar mass of this compound? g/mol

A 4.1x102 mg sample of a protein is dissolved in water to make 0.25 mL of solution. The osmotic pressure of the solution is 0.56 torr at 25° C. What is the molar mass of the protein? g/mol

A 188 mg sample of a nonelectrolyte isolated from throat lozenges is dissolved in enough water to make 10.0 ml of solution at 25 °C. The osmotic pressure of the resulting solution is 4.89 atm. Calculate the molar mass of the compound. O 7.89x103 g/mol O 940 g/mol O 94.0 g/mol O 9,52x103 g/mol

The nonvolatile, nonelectrolyte aspirin, C9Hg 04 (180.10 g/mol), is soluble in diethyl ether CH3CH₂OCH₂CH3. Calculate the osmotic pressure generated when 11.5 grams of aspirin are dissolved in 207 ml of a diethyl ether solution at 298 K. The molarity of the solution is The osmotic pressure of the solution is M. atmospheres.

2⁰ A 1.212 g sample contains only vitamin C (CH₂O) and sucralose (C₁2H₁9Cl3Og). When the sample is dissolved in water to a total volume of 34.2 mL, the osmotic pressure of the solution is 4.15 atm at 297 K. What is the mass percent of vitamin C and sucralose in the sample? vitamin C: sucralose: % %

When 2.63 g of a polypeptide is dissolved in 153 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.)

4. What is the osmotic pressure of a solution if 1.50 grams of BaCk has been mixed in a 200mL of 0.50M solution of BaCl2? The temperature of the solution is 45°C. 5. What is the vapor pressure lowering of the resulting solution in problem 4 if the vapor pressure of the solvent is 5.00 atm? Assume that the volume of the solvent is the volume of the solution. 6. A student was requested to prepare a 500mL of 0.5N solution of MgSO.. The lab teacher required the student to change the concentration of the solution by adding 2.50 grams of MgSO. The boiling point of water was determined to be 98.5°C while the freezing point was noted at 0.50 °C. What is the final concentration of the solution expressed as molality (m) after adding extra MgS0.7 What is the boiling point and freezing point of the solution? (Use the Ko and Ki values from any reference.) Assume that the volume of the solvent is also the volume of the solution.

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When 3.25 g of a nonelectrolyte solute is dissolved in water to make 165 mL of solution at 24 °C, the solution exerts an osmotic pressure of 879 torr.What is the molar concentration of the solution? MHow many moles of solute are in the solution? molWhat is the molar mass of the solute? g/mol

A 0.13-g sample of a purified protein is dissolved in water to give 2.0 mL of solution. The osmotic pressure is found to be 17.0 torr at 25°C. Calculate the protein's molar mass. Molar mass =  g/mol