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14. 60) A mixture of NaCI and sucrose (CiaH20) NaCl in the mixture. Assume that the...
5. 1.024 g of an unknown molecular solid are dissolved in enough water to produce 200.0...
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...
A saline solution contains 7.6 g of NaCl in 1.00 kg of water. Assuming an ideal...
A saline solution contains 7.6 g of NaCl in 1.00 kg of water. Assuming an ideal value for the Van't Hoff factor, i, calculate the freezing point of this solution in °C out of Answer 18 A saline solution contains 79 g of NaCi per 0.60 iter of solution. Assuming an ideal value for the van't Hoff factor, calculate the osmotic pressure (in atm) of this solution at 288 K out of Answer 19 A reverse osmosis unit is used...
1. Calculate the solution temperature required to produce an osmotic pressure of 1.10 mbar using 3.85...
1. Calculate the solution temperature required to produce an osmotic pressure of 1.10 mbar using 3.85 mg of a protein with a molar mass of 4183 g mol-1 that is dissolved in enough water to create 20.0 mL of solution. A) 288 K B) 314 K C) 278 K D) 293 K E) 299 K 39) 2. Identify the solute with the highest van't Hoff factor. A) MgCl2 B) Naci C) MgSO4 D) nonelectrolyte E) FeCl3
Help (0.0034 / 0.035) times 100 Percent ionization = 9.7% A solid mixture contains both MgCl2...
Help
(0.0034 / 0.035) times 100 Percent ionization = 9.7% A solid mixture contains both MgCl2 and NaCl. When 0.5000 g of this mixture is dissolved in enough water to form 1.000 L of solution, the osmotic pressure at 25.0 Degree C is observed to be 0.3990 atm. What is the mass percent of MgCl2 in the solid? (Assume ideal behavior for the solution and that both ionic compounds dissociate completely in the water.)
(b) 150 mL of solution is prepared by dissolving 1.20 g of sodium c hloride, NaCI...
(b) 150 mL of solution is prepared by dissolving 1.20 g of sodium c hloride, NaCI in enough water at 30 C. Given osmotic pressure is 2.20X102 atm. Determine the average molar mass of the NaCI.
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
What mass of sucrose (C12H22O11) should be combined with 458 g of water to make a...
What mass of sucrose (C12H22O11) should be combined with 458 g of water to make a solution with an osmotic pressure of 8.70 atm at 300 K? (Assume the density of the solution to be equal to the density of the solvent.)
The freezing point depression constant of water is -1.86 C/m. If 7.50 g NaCl is dissolved...
The freezing point depression constant of water is -1.86 C/m. If 7.50 g NaCl is dissolved in 45.0 g H, O, the freezing point is changed by -9.71 *C. Calculate the van't Hoff factor for Naci. Select one: O a. 1,00 . OOOO c. 1.83
I’m just missing these two questions ? Help please P24. What is the osmotic pressure π),...
I’m just missing these two questions ? Help please
P24. What is the osmotic pressure π), in atm, at 25 °C of an aqueous solution containing 2.75 grams of beryllium fluoride, BeF2, dissolved in 500 mL of water? BeF2 is an electrolyte compound. [Hint: van't Hoff Factor] & (R 0.0821 L atm/mol K) 2.61 atm b) 3.05 atm 7.15 atm 8.59 atm
The nonvolatile, nonelectrolyte sucrose , C12H22O11 (342.3 g/mol), is soluble in water H2O. How many grams...
The nonvolatile, nonelectrolyte sucrose , C12H22O11 (342.3 g/mol), is soluble in water H2O. How many grams of sucrose are needed to generate an osmotic pressure of 3.56 atm when dissolved in 227 ml of a water solution at 298 K. grams sucrose
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...
A saline solution contains 7.6 g of NaCl in 1.00 kg of water. Assuming an ideal value for the Van't Hoff factor, i, calculate the freezing point of this solution in °C out of Answer 18 A saline solution contains 79 g of NaCi per 0.60 iter of solution. Assuming an ideal value for the van't Hoff factor, calculate the osmotic pressure (in atm) of this solution at 288 K out of Answer 19 A reverse osmosis unit is used...
Help
(0.0034 / 0.035) times 100 Percent ionization = 9.7% A solid mixture contains both MgCl2 and NaCl. When 0.5000 g of this mixture is dissolved in enough water to form 1.000 L of solution, the osmotic pressure at 25.0 Degree C is observed to be 0.3990 atm. What is the mass percent of MgCl2 in the solid? (Assume ideal behavior for the solution and that both ionic compounds dissociate completely in the water.)
(b) 150 mL of solution is prepared by dissolving 1.20 g of sodium c hloride, NaCI in enough water at 30 C. Given osmotic pressure is 2.20X102 atm. Determine the average molar mass of the NaCI.
The freezing point depression constant of water is -1.86 C/m. If 7.50 g NaCl is dissolved in 45.0 g H, O, the freezing point is changed by -9.71 *C. Calculate the van't Hoff factor for Naci. Select one: O a. 1,00 . OOOO c. 1.83
I’m just missing these two questions ? Help please
P24. What is the osmotic pressure π), in atm, at 25 °C of an aqueous solution containing 2.75 grams of beryllium fluoride, BeF2, dissolved in 500 mL of water? BeF2 is an electrolyte compound. [Hint: van't Hoff Factor] & (R 0.0821 L atm/mol K) 2.61 atm b) 3.05 atm 7.15 atm 8.59 atm
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