1. An aqueous solution has a mole fraction of 0.119 KOH. What is the molarity of...
1. An aqueous solution has a mole fraction of 0.119 KOH. What is the molarity of the solution? Assume that the density of the solution is 1.15 g/mL.
Enter your answer to three significant figures and in units of molarity.
2. Glycerol (C3H8O3, 92.1 g/mol) is a nonvolatile nonelectrolyte substance. Consider that you have an aqueous solution that contains 28.6 % glycerol by mass. If the vapor pressure of pure water is 23.8 torr at 25oC, what is the vapor pressure of the solution at 25oC?
Enter your answer in units of torr to three significant figures.
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1. An aqueous solution has a mole fraction of
0.119 KOH. What is the molarity of...
An aqueous solution has a mole fraction of 0.068 KOH. What is the molarity of the...
An aqueous solution has a mole fraction of 0.068 KOH. What is the molarity of the solution? Assume that the density of the solution is 1.15 g/mL.
4a Calculate the molarity of an aqueous solution of sodium perchlorate with a solute mole fraction...
4a Calculate the molarity of an aqueous solution of sodium perchlorate with a solute mole fraction of 0.081 and a density, ρ = 1.078 g/mL. Report your answer to THREE significant figures. 4b Calculate the molarity of a 41.2% by mass aqueous solution of copper (I) sulfate with a density, ρ = 1.177 g/mL. Report your answer to THREE significant figures. 4c Calculate the mole fraction of the solute of a 4.211 m aqueous solution of cadmium (II) bromide with...
Pt 1 - Glycerol (C3H8O3), also called glycerine, is widely used in the food and pharmaceutical...
Pt 1 - Glycerol (C3H8O3), also called glycerine, is widely used in the food and pharmaceutical industries. Glycerol is polar and dissolves readily in water and polar organic solvents like ethanol. Calculate the mole fraction of the solvent in a solution that contains 2.21 g glycerol dissolved in 22.00 mL ethanol (CH3CH2OH; density = 0.7893 g/mL). Round to four significant digits. Pt 2 - Use your answer to Part 2 to calculate the vapor pressure of the solution at 20°C...
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...
A mystery solution (with mole fraction of solute of 0.15) has a vapor pressure of 65.0...
A mystery solution (with mole fraction of solute of 0.15) has a vapor pressure of 65.0 torr at 85 degrees C. What is the vapor pressure of the pure solvent at 85 degrees C? Assume the solution is a nonelectrolyte.
In a mixture of volatile substances, the vapor pressure of the solution depends on the vapor...
In a mixture of volatile substances, the vapor pressure of the solution depends on the vapor pressure of both substances (solute and solvent). Each component can evaporate, but its vapor pressure is lowered by the presence of the other substance following Rault's law. The vapor pressure of the solvent is calculated using Psolvent = Xsolvent*Posolvent and the vapor pressure of the solute is calculated using Psolute = Xsolute*Posolute. The total vapor pressure can be calculated by Dalton's law of partial...
26. What would be the Molarity of an aqueous solution that has a mole fraction of...
26. What would be the Molarity of an aqueous solution that has a mole fraction of glucose, C6H12O6 equal to 0.183? The density of the solution is 1.32 g/mL. a. 5.07 M b. 3.52 M c. 1.86 M do 0.723 M
1e. An aqueous solution has a mole fraction of solute of (4.73x10^-2). The density of the...
1e. An aqueous solution has a mole fraction of solute of (4.73x10^-2). The density of the solution is (1.1400x10^0) g/mL and the solute has a molar mass of (8.020x10^1) g/mol. What is the Molarity of solute of this solution? 1f. At an unknown temperature a solution made of (7.740x10^0) g of a non-volatile solute dissolved in 100.0 g of water has a vapor pressure of (5.51x10^1) mm Hg. What is the vapor pressure of pure water (in mm Hg) at...
An aqueous solution of glucose has a molarity of 4.50 M, what is the mole fraction...
An aqueous solution of glucose has a molarity of 4.50 M, what is the mole fraction of the solvent.
Calculate the molality, molarity, and mole fraction of FeCl3 in a 21.6 mass % aqueous solution...
Calculate the molality, molarity, and mole fraction of FeCl3 in a 21.6 mass % aqueous solution (d = 1.280 g/mL). molality _______ m molarity _______M mole fraction ________
26. What would be the Molarity of an aqueous solution that has a mole fraction of glucose, C6H12O6 equal to 0.183? The density of the solution is 1.32 g/mL. a. 5.07 M b. 3.52 M c. 1.86 M do 0.723 M
An aqueous solution of glucose has a molarity of 4.50 M, what is the mole fraction of the solvent.
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