Calculate the vapor pressure of a solution made by dissolving 94.5 g of urea (molar mass=...
Be sure to answer all parts. Calculate the vapor pressure of a solution made by dissolving 87.8 g of urea (molar mass = 60.06 g/mol) in 224.5 mL of water at 35°C. (Hint: The vapor pressure of pure water at 35°C is given in the table below. Assume the density of the solution is 1.00 g/mL.) I nHg What is the magnitude of vapor-pressure lowering? D nHg
I know that the answer is a but what are the steps?? 3. Calculate the vapor pressure at 20.0° C of a saturated solution of the nonvolatile solute urea CO(NH2)2, in methanol, CH3OH. The solubility is 17.0 g urea/100.0 mL methanol. The density of methanol is 0.792 g/mL and its vapor pressure at 20.0° C is 95.7 mmHg. [The molar mass of urea is 60.06 g/mol and for methanol is 32.04 g/mol] A) 85.9 mmHg B) 28.3 mmHg C) 24.7...
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...
Calculate the percent by mass of a solution made by dissolving 34.0g of NH3 in 2.00 x 10^3 mL of water. (molar mass NH3 = 17.04 g/mol, density of H20 = 1.00 g/mL).
Calculate the expected vapor pressure at 25 °C for a solution prepared by dissolving 235 g ethanol (M = 46 g/mol) in 500 mL of water. At 25 °C, the density of water is 0.9971 g/cm3 and the vapor pressure is 23.76 torr.
Calculate the vapor pressure of a solution made by dissolving 109 grams of glucose in 920.0 mL of water at 25oC. Assume the density of the solution is 1 g/mL.
A solution is made by dissolving 41.1 g urea (CH N20), a nonelectrolyte, in 275 g water. Calculate the vapor pressure of this solution at 25°C and 45°C. 25°C 45°C vapor pressure of water 23.8 torr 71.9 torr vapor pressure at 25°C vapor pressure at 45°C -
Calculate the vapor pressure depression of a solution that 218 gram glucose (180.2 g/mol) is dissolved in 460 mL of water (18.01 g/mol). The temperature of the solution is 30°C. Assume the density of solution and water as 1.00 g/mL, the vapor pressure of pure water at 30°C 31.82 mm Hg.
Calculate the expected vapor pressure at 25 °C for a solution prepared by dissolving 235 g ethanol (M = 46 g/mol) in 500 mL of water. At 25 °C, the density of water is 0.9971 g/cm3 and the vapor pressure is 23.76 torr. 3.7 torr 20.06 torr 10.6 torr 12 torr
Calculate the vapor pressure of the solution made by dissolving 10.28 moles of NaCl in 1.4 Moles of water at 25.C? The vapor pressure of water a 25C is 23.8 mmHg. A. 12.1 mmHg B. 12.1 atm C. None of the above D. 2.23 mmHg E. 8.0 mmHg