Calculate the osmotic pressure (in atm) of a solution containing 1.50 g ethylene glycol (C2H6O2) in 50.0 mL of solution at 25 °C.

A 267−mL benzene solution containing 2.27 g of an organic polymer has an osmotic pressure of 7.37 mm Hg at 13°C. Calculate the molar mass of the polymer.

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 =303.5K

Pepsin is an enzyme involved in the process of digestion. Its molar mass is about 3.50 x 10 g/mol. What is the osmotic pressure in mmHg at 30 °C of a 0.150-g sample of pepsin in 40.0 mL of an aqueous solution?

4. It is found that 0.220 g of a certain polymer dissolved in enough water to make 300 mL of solution has an osmotic pressure of 0.745 torr at 20 °C. Determine the molecular mass of the polymer.

What is the molecular formula of the compound (which contains only carbon, hydrogen, and oxygen)?

A protein subunit from an enzyme is part of a research study and needs to be characterized. A total of 0.170 g of this subunit was dissolved in enough water to produce 2.00 mL of solution. At 28 °C the osmotic pressure produced by the solution was 0.138 atm. What is the molar mass of the protein?

Determine the molality of a 25% sodium thiosulfate, Na2S2O3, solution.

13.69 g of protein are dissolved in 200.0 mL of water at 28.3 ∘C. The osmotic pressure of the solution is 1.999 mmHg. Find the molar mass of the protein.

In a chemical reaction with activation energy E. = 20 kJ/mol, (a) how many folds the rate constant is increased when the temperature increases from 300 K to 1000 K? That is, the ratio of k(1000K)/k(300K). (b) In the presence of a catalyst, the activation energy is brought down to 10 kJ/mol, how many folds the rate constant is increased at the same temperature 300K?