Vapor Pressure is the pressure exerted by a gas at equilibrium with its liquid phase at a specific temperature in a closed system.
Vapor Pressure Lowering Concept 1
Vapor Pressure Lowering Example 1
How many grams of glucose, C6H12O6, must be added to 515.0 g of water to give a solution with a vapor pressure of 13.2 torr at 20.0ºC? The vapor pressure of pure water at 20.0ºC is 17.5 torr.
Determine the vapor pressure lowering associated with 1.32 m C6H12O6 solution (MW:180.156 g/mol) at 25°C. The vapor pressure of pure water at 25°C is 23.8 torr.
The vapor pressure of water at 100.0ºC is 0.720 atm. Determine the mass percent of iron (II) chloride, FeCl2, needed to reduce its vapor pressure to 0.655 atm. (MW of FeCl2 is 126.756 g/mol)
- 12. A solution contains 4.08 g of chloroform 1CHCl32 and 9.29 g of acetone 1CH3COCH32. The vapor pressures at...
- The vapor pressure of pure water at 60 °C is 149 torr. The vapor pressure of water over a solution at 60 °C c...
- At 63.5 °C, the vapor pressure of H2O is 175 torr, and that of ethanol 1C2H5OH2 is 400 torr. (b) Assuming idea...
- At 63.5 °C, the vapor pressure of H2O is 175 torr, and that of ethanol 1C2H5OH2 is 400 torr. A solution is mad...
- At 20 °C, the vapor pressure of benzene 1C6H62 is 75 torr, and that of toluene 1C7H82 is 22 torr. Assume that ...
- Calculate the vapor pressure of a solution containing 24.5 g of glycerin (C3H8O3) in 135 mL of water at 30.0 ...
- A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of...
- Calculate the vapor pressure at 25 °C of an aqueous solution that is 5.50% NaCl by mass. (Assume complete dis...
- An aqueous CaCl2 solution has a vapor pressure of 81.6 mmHg at 50 °C. The vapor pressure of pure water at this...
- A “canned heat” product used to warm buffet dishes consists of a homogeneous mixture of ethanol 1C2H5OH2 and p...
- Two beakers are placed in a sealed box at 25 °C. One beaker contains 30.0 mL of a 0.050 M aqueous solution of ...
- What is the vapor pressure in mm Hg of the following solu-tions, each of which contains a nonvolatile solute? ...
- Cyclopentane 1C5H102 and cyclohexane 1C6H122 are vola- tile, nonpolar hydrocarbons. At 30.0 °C, the vapor pres...
- A solution of a nonvolatile solute in water has a boiling point of 375.3 K. Calculate the vapor pressure of w...
- The density of a 0.438 M solution of potassium chromate (K2CrO4) at 298 K is 1.063 g>mL. Calculate the vapo...
- The vapor pressure of carbon tetrachloride, CCl4, is 0.354 atm, and the vapor pressure of chloroform, CHCl3, ...
- Bromine is sometimes used as a solution in tetrachloro- methane, CCl4. What is the vapor pressure in mm Hg of ...
- A solution of LiCl in a mixture of water and methanol 1CH3OH2 has a vapor pressure of 39.4 mm Hg at 17 °C and ...
- At 60 °C, compound X has a vapor pressure of 96 mm Hg, benzene 1C6H62 has a vapor pressure of 395 mm Hg, and a...