The osmotic pressure of an aqueous solution of a certain

Chapter , Problem 1PE

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Problem 1PE

The osmotic pressure of an aqueous solution of a certain protein was measured to determine the protein’s molar mass. The solution contained 3.50 mg of protein dissolved in sufficient water to form 5.00 mL of solution. The osmotic pressure of the solution at 25 °C was found to be 1.54 torr. Treating the protein as a nonelectrolyte. calculate its molar mass.

Proteins frequently form complexes in which 2. 3. 4. or even more individual proteins {■monomers'} interact specifically with each other via hydrogen bonds or electrostatic interactions. The entire assembly of proteins can act as one unit in solution, and this assembly is called the "quaternary structure" of the protein. Suppose you discover a new protein whose monomer molar mass is 25.000 g/mol. You measure an osmotic pressure of 0.0910 atm at 37 aC for 7.20 g of the protein in 10.00 mL of an aqueous solution. How many protein monomers form the quaternary protein structure in solution? Treat the protein as a nonelectrolyte.

<a)1.

<b> 2.

<c> 3.

<d>4.

<e> 8.