A 188.6 mL sample of an aqueous solution at 25°C contains 80.2 mg of an unknown...
A 188.6 mL sample of an aqueous solution at 25°C contains 80.2 mg of an unknown nonelectrolyte compound. If the solution has an osmotic pressure of 8.44 torr, what is the molar mass (in g/mol) of the unknown compound?
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A 188.6 mL sample of an aqueous solution at 25°C contains 80.2
mg of an unknown...
A 150.0 ml of sample of an aqueous solution at 25 degrees celcius contains 15.2 mg of unknown electrolyte compound. If...
A 150.0 ml of sample of an aqueous solution at 25 degrees celcius contains 15.2 mg of unknown electrolyte compound. If the solution has an osmotic pressure of 8.44 torr, what is the molar mass of the unkown compound?\
A solution of 7.50 mg of a small protein in 5.00 mL aqueous solution has an...
A solution of 7.50 mg of a small protein in 5.00 mL aqueous solution has an osmotic pressure of 6.15 torr at 23 1degree C. What is the molar mass of the protein? g/mol
A 4.75-g sample of an unknown compound is dissolved in enough water to make 100.0 mL...
A 4.75-g sample of an unknown compound is dissolved in enough water to make 100.0 mL of solution. This solution has an osmotic pressure of 25.0 torr at 25oC. Find the molar mass of the unknown.
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
6. A 1.07 mg sample of a compound was dissolved in 78.1 mg of camphor. The...
6. A 1.07 mg sample of a compound was dissolved in 78.1 mg of camphor. The resulting solution melted at 176.0 C. What is the molecular mass of the compound? The melting point of pure camphor is 179.5 C. The freezing-point-depression constant for camphor Kf is 40.0 C/m. 7. A solution is prepared by dissolving 5.88 g of an unknown nonelectrolyte in enough water to make 0.355 L of solution. The osmotic pressure of the solution is 1.21 atm at...
A 275 mg sample of a nonelectrolyte compound was dissolved in water to produce 10.0 mL...
A 275 mg sample of a nonelectrolyte compound was dissolved in water to produce 10.0 mL of a solution at 25°C. The osmotic pressure of this solution was measured and found to be 3.67 atm. What is the molar mass of this compound? O 183 g/mol 18.3 g/mol 101 g/mol 1560 g/mol 1830 g/mol Question 25 (1 point) Which statement below is true? O Nonpolar molecules can dissolve in polar solvents. Gases are soluble only in nonpolar solvents. lonic compounds...
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypotheti...
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown in the following table. Action Enthalpy separation of solute 11.5 kJ/mol separation of solvent 21.8 kJ/mol formation of solute-solvent interactions -86.7 kJ/mol solute...
In a laboratory experiment, a student found that a 158-mL aqueous solution containing 2.059 g of...
In a laboratory experiment, a student found that a 158-mL aqueous solution containing 2.059 g of a compound had an osmotic pressure of 16.9 mm Hg at 298 K. The compound was also found to be nonvolatile and a nonelectrolyte. What is the molar mass of this compound?
1.When a solution is made from 32.2 g of an unknown nonelectrolyte dissolved in 151 g...
1.When a solution is made from 32.2 g of an unknown nonelectrolyte dissolved in 151 g of solvent, the solution boils at 83.44 °C. The boiling point of the pure solvent and its Kb are 79.31 °C and 4.47 °C/m, respectively. Calculate the molar mass of the unknown electrolyte in g/mol. 2. Calculate the molar mass (in g/mol) of an unknown nonelectrolyte if 0.898 g dissolved in 268.7 mL of water at 30.13 °C has an osmotic pressure of 68.1...
Hemoglobin is a large molecule that carries oxygen in the body. An aqueous solution that contains...
Hemoglobin is a large molecule that carries oxygen in the body. An aqueous solution that contains 2.61 g of hemoglobin in 100.0 mL has an osmotic pressure of 7.52 mmHg at 25°C. What is the molar mass of the hemoglobin? Assume hemoglobin does not dissociate in water. 1.96 x 103 g/mol O 3.65 x 103 g/mol 84.8 g/mol 6.45 x 104 g/mol
A solution of 7.50 mg of a small protein in 5.00 mL aqueous solution has an osmotic pressure of 6.15 torr at 23 1degree C. What is the molar mass of the protein? g/mol
A 275 mg sample of a nonelectrolyte compound was dissolved in water to produce 10.0 mL of a solution at 25°C. The osmotic pressure of this solution was measured and found to be 3.67 atm. What is the molar mass of this compound? O 183 g/mol 18.3 g/mol 101 g/mol 1560 g/mol 1830 g/mol Question 25 (1 point) Which statement below is true? O Nonpolar molecules can dissolve in polar solvents. Gases are soluble only in nonpolar solvents. lonic compounds...
Hemoglobin is a large molecule that carries oxygen in the body. An aqueous solution that contains 2.61 g of hemoglobin in 100.0 mL has an osmotic pressure of 7.52 mmHg at 25°C. What is the molar mass of the hemoglobin? Assume hemoglobin does not dissociate in water. 1.96 x 103 g/mol O 3.65 x 103 g/mol 84.8 g/mol 6.45 x 104 g/mol
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