
Immunoglobulin G (IgG), formerly called gamma globulin, is a principal antibody in blood serum. A 0.677...
Bovine serum albumin (BSA) is a biochemically useful protein. A 0.274 g sample of bovine serum albumin is dissolved in water to make 0.120 L of solution, and the osmotic pressure of the solution at 25 ∘C is found to be 0.853 mbar. Calculate the molecular mass of bovine serum albumin. molecular mass: g/mol
Bovine serum albumin (BSA) is a biochemically useful protein. A 0.257 gram sample of bovine serum albumin is dissolved in water to make 0.146 L of solution, and the osmotic pressure of the solution at 25 °C is found to be 0.658 mbar. Calculate the molecular mass of bovine serum albumin.
A mixture with 3 pmol each of human serum albumin (HSA) and immunoglobulin G (IgG) was ionized and analyzed. The MALDI-TOF mass spectrum is shown. Estimate the molecular weight of each protein. Round your answers to the nearest 1 Da. estimated mass of HSA: estimated mass of lgG:
β-Galactosidase (β-gal) is a hydrolase enzyme that catalyzes the hydrolysis of β-galactosides into monosaccharides. A 0.360 gram sample of β-galactosidase is dissolved in water to make 0.108 L of solution, and the osmotic pressure of the solution at 25 °C is found to be 0.709 mbar. Calculate the molecular mass of β-galactosidase.
5. 1.024 g of an unknown molecular solid are dissolved in enough
water to produce 200.0 mL of solution. The osmotic pressure at 25C
is 278.0 torr. What is the molar mass of the solid?
6a. Calculate the van't Hoff factor of a 0.085M potassium
sulfate solution that has an osmotic pressure of 5.4atm at
25C
5. 1.024 g of an unknown molecular solid are dissolved in enough water to produce 200.0 ml. of solution. The osmotic pressure at 25...
Let’s consider a solution of 100 g of glucose (with a molar mass of 180 g/mol) dissolved in 1 L of water. a) What is the osmotic pressure of the solution at 25˚C? b) At what temperature will the solution freeze?
5. 1.024 g of an unknown molecular solid are dissolved in enough water to produce 200.0 mL of solution. The osmotic pressure at 25°C is 278.0 torr. What is the molar mass of the solid? 1342.5 g/mol
. 0.275 L of solution is prepared by dissolving 2.50 g of an unknown molecular compound in enough water. The osmotic pressure of this solution is 1.98 atm at 27 °C. (R = 0.08206 L·atm/mol·K) a) Determine the molar mass of the molecular compound. (7 pts) b) If you need to prepare 0.275 L of AlCl3 solution with the same osmotic pressure of the above solution, what mass of AlCl3 (MW = 133.33 g/mol) would you need to weigh out?
3a. Calculate the molar mass (in g/mol) of an unknown 1:1 electrolyte if 0.482 g dissolved in 223.1 mL of water at 74.75 °C has an osmotic pressure of 54.4 mmHg. R = 0.082058 L⋅atm⋅mol−1⋅K−1. 1.00 atm = 760 mmHg. Report your answer to THREE significant figures. 3b. Calculate the required mass of an unknown nonelectrolyte (ℳ = 131.5599 g/mol) dissolved in 140.1 g of solvent that gives a solution that boils at 36.04 °C. The boiling point of the...
PLEASE HELP! Dealing with molality and pressure
Calculate the morality of a solution containing 0.755 mol glucose and 1.75 kg of water. 0.875 m 0.583 m 0.431 m 580 m 0.850 m What mass of a 0.66 m ammonium nitrate(80.04 g/mol) solution will contain 0.15 mol of solute? 227 g 239 g 440 g 493 g 4453 g What is the morality of a sucrose (C_12H_22O_11) solution that produces an osmotic pressure of 2.65 atm at 25 degree C? 0.0349...