Problem #2: The vapor pressure of an aqueous solution is found to be 24.90 mmHg at...
Homework RAUULI LAW CHEM4LIU Problem #1: What is the vapor pressure of an aqueous solution that has a solute mole fraction of o.1000? The vapor pressure of water is 25.756 mmHg at 25 °C.
The vapor pressure of an aqueous solution of urea, CH4N2O, is 291.2 mm Hg. The vapor pressure of water at this temperature is 355.1 mm Hg. Calculate the mole fraction of urea in this solution. a. 0.180 b. 0.220 c. 0.500 d. 0.820 e. 1.22 please show all work
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...
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...
What is the vapor pressure for an aqueous sucrose (C12H22011) solution containing 34.2 g of sucrose and 180 g of water (H2O) at 25°C? Pº(H20) at 25°C 23.8 mm Hg Molar mass of 342 g/mol sucrose Molar mass of 18.0 g/mol water 23.8 mm Hg O 0.23 mm Hg 23.6 mm Hg 13.2 mmHg
14. What is the vapor pressure in mmHg of a solution of a solution that contains 10.0 g of urea, CHAN20, in 150.0 g of water at 45.0 "C. The vapor pressure of water at 45.0°C is 71.93 mmHg and urea is a nonvolatile solute. 15. What is the freezing point in °C for the above problem? For water, Kr-1.86 °C/m. 16. The van't Hoff factor for KClisi = 1.85. What is the boiling point of a 0.75 m solution...
At 25°C, the vapor pressure of benzene is 96.0 mm Hg; 30.3 mm Hg for toluene, and 23.76 mm hg). 1. What is: (i) the vapor pressure of a mixture of 10.0 g of benzene and 20.0 g toluene at 25 oC, and; (ii) the mole fraction benzene and toluene in the vapor of the solution? 2. What is the vapor pressure of a solution of 15.0 g of NaNO3 in 50.0 g of water at 25° Please answer all...
has a vapor pressure of 0.0 mm Nicotine is shown below. It is an only and "C. Consider it nonvolatile for this problem. a. 2.50 grams of nicotine was dissolved in 1500s of dichloromethane. What is the concentration of that solution in mole fraction? b. What is the vapor pressure of that solution at 25 C if the vapor pressure of pure dichloromethane is 435 mmHg?
1.What is the mole fraction of MgCl2 (MM=95.21 g/mole) in an aqueous solution that is 5.80 m MgCl2? A. 0.104 B. 0.0946 C. 0.356 D. 0.553 E. none of these 2. A solution contains 0.144m Na2SO4 and has a measured freezing point of -0.606 degree celcius. What is the value of the Van’t Hoff factor, i? The freezing point depression constant for water is -1.86 degree celcius/m. A. 3 B.0.326 C.2.26 D. 3.07. E. Cannot be determined 3.The vapor pressure...
Part A What is the vapor pressure in mmHg of a solution prepared by dissolving 5.00 g of benzoic acid (CzH6O2) in 100.00 g of ethyl alcohol (C2H60) at 35 °C? The vapor pressure of pure ethyl alcohol at 35 °C is 100.5 mmHg. Assume that benzoic acid does not ionize in this solvent. V ACO R O P ? Psoln = mm Hg Submit Request Answer Provide Feedback Next >