A protein has been isolated as a salt with the formula Na20P (this notation means that...
A protein has been isolated as a salt with the formula Na20P (this notation means that there are 20 Na+ ions associated with a negatively charged protein P20−). The osmotic pressure of a 10.0 mL solution containing 0.265 g of the protein is 0.201 atm at 25.0°C. (a) Calculate the molar mass of the protein from these data. (b) Calculate the actual molar mass of the protein.
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A protein has been isolated as a salt with the formula Na20P
(this notation means that...
7) Suppose David has isolated a protein subunit doing some research for Dr. Blackledge. A total of 0.165 g of this subu...
7) Suppose David has isolated a protein subunit doing some research for Dr. Blackledge. A total of 0.165 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?
467. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of...
467. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The osmotic pressure of this solution is measured to be 0.0930 atm at 25.0 °C. Calculate the molar mass of the protein. Be sure your answer has the correct number of significant digits.
A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have...
A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have an osmotic pressure of 3.22 torr at 25.0oC. What is the molar mass ofthe protein
A protein, that is thought to be Dystrphin (0.00100 g) is dissolved in 1.00 mL of...
A protein, that is thought to be Dystrphin (0.00100 g) is dissolved in 1.00 mL of solution. The measured osmotic pressure is 1.12 torr at 25.0°C. (a) Calculate the molar mass of the Dystrphin. (b) Do you think this protein is actually Dystrphin? Explain.
The osmotic pressure of a solution containing 22.7 mg of an unknown protein in 50.0 mL...
The osmotic pressure of a solution containing 22.7 mg of an unknown protein in 50.0 mL of solution is 2.88 mm Hg at 25.0°C. Determine the molar mass of the protein. Select one: O a. 3.85 x 10 g/mol O b.3.85 g/mol O c. 2.46 x 10 g/mol O d. 1.47 x 10 g/mol e. 2.93 x 109 g/mol
A 214 mL solution containing 23 g of a protein in toluene had an osmotic pressure...
A 214 mL solution containing 23 g of a protein in toluene had an osmotic pressure of 0.053 atm at 27 oC. What is the molar mass (in g/mol) of the protein? Only enter a numerical value rounded to the nearest whole number in the answer box below. Do NOT type in the unit (g/mol). 2) An NaCl solution is prepared by dissolving 20.0 g NaCl in 150.0 g of water at 25°C. What is the vapor pressure of the...
A 266−mL sample of a sugar solution containing 1.24 g of the sugar has an osmotic...
A 266−mL sample of a sugar solution containing 1.24 g of the sugar has an osmotic pressure of 30.2 mmHg at 34.1°C. What is the molar mass of the sugar? __ g/mol Calculate the osmotic pressure of a 0.0493 M FeCl3 solution at 25°C. (The van't Hoff factor for FeCl3 is 3.04) __ atm
Calculate the solubility (in g / L) of a generic salt with a formula of A2B,...
Calculate the solubility (in g / L) of a generic salt with a formula of A2B, a Ksp of 5.50 × 10−14 and a molar mass of 135 g / mol. ___ g/L Tris [tris(hydroxymethyl)aminomethane] is a common buffer for studying biological systems. (Ka = 5.01 × 10−9 and pKa = 8.3) (a) Calculate the pH of the Tris buffer after mixing 13.0 mL of 0.10 M HCl solution with 25.0 mL of 0.10 M Tris. (b) This buffer was...
Q1) Q2) Take R = 0.08206 L atm/mol K or 8.314 J /mol K if you...
Q1)
Q2)
Take R = 0.08206 L atm/mol K or 8.314 J /mol K if you need
Thank you
9.47 g of a polystyrene sample was dissolved in acetone to make 135 mL of solution, and the osmotic pressure was measured to be 10.6 torr at 27°C. a) What is the molarity of the polystyrene solution? [Select] y x104M b) What is the approximate molar mass of the polystyrene? (Select] x 105 g/mol (Correct your answers to 3 sig. fig.)...
3a. How many grams of sucrose must be added to 430g of water to lower the vapor pressure 1.4mmHg at 25C? The vapor press...
3a. How many grams of sucrose must be added to 430g of water to
lower the vapor pressure 1.4mmHg at 25C? The vapor pressure of
water at 25C is 233.8 mmHg and molar mass is 342.3 g/mol
3. Vapor pressure lowering a) How many grams of sucrose must be added to 430 R of water to lower the vapor pressure 1.4 mm Hg at 25 °C? The vapor pressure of water at 25°C is 23.8 mm Hg and the molar...
7) Suppose David has isolated a protein subunit doing some research for Dr. Blackledge. A total of 0.165 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?
467. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The osmotic pressure of this solution is measured to be 0.0930 atm at 25.0 °C. Calculate the molar mass of the protein. Be sure your answer has the correct number of significant digits.
The osmotic pressure of a solution containing 22.7 mg of an unknown protein in 50.0 mL of solution is 2.88 mm Hg at 25.0°C. Determine the molar mass of the protein. Select one: O a. 3.85 x 10 g/mol O b.3.85 g/mol O c. 2.46 x 10 g/mol O d. 1.47 x 10 g/mol e. 2.93 x 109 g/mol
Q1)
Q2)
Take R = 0.08206 L atm/mol K or 8.314 J /mol K if you need
Thank you
9.47 g of a polystyrene sample was dissolved in acetone to make 135 mL of solution, and the osmotic pressure was measured to be 10.6 torr at 27°C. a) What is the molarity of the polystyrene solution? [Select] y x104M b) What is the approximate molar mass of the polystyrene? (Select] x 105 g/mol (Correct your answers to 3 sig. fig.)...
3a. How many grams of sucrose must be added to 430g of water to
lower the vapor pressure 1.4mmHg at 25C? The vapor pressure of
water at 25C is 233.8 mmHg and molar mass is 342.3 g/mol
3. Vapor pressure lowering a) How many grams of sucrose must be added to 430 R of water to lower the vapor pressure 1.4 mm Hg at 25 °C? The vapor pressure of water at 25°C is 23.8 mm Hg and the molar...
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