An aqueous calcium chloride solution has a vapor pressure of 80.8mmHg at 50 ?C. The vapor pressure of pure water at this temperature is 92.6 mmHg. (Assume calcium chloride completely dissociates.)
-What is the concentration of calcium chloride in mass percent?

An aqueous calcium chloride solution has a vapor pressure of 80.8mmHg at 50 ?C. The vapor...
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...
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...
An aqueous solution is made by dissolving sodium chloride in 2.08 mL of water. The vapor pressure of the solution at 30 °C is 25.7 torr. The vapor pressure of pure water at this temperature is 31.8 torr. How many grams of sodium chloride were added to the water to make the solution? The density of water at 30 °C is 0.99567 g/cm3.
Calculate the vapor pressure at 25 degrees C of an aqueous solution that is 5.50% NaCl by mass. The pure vapor pressure of water at this temperature is 23.78 torr.
12/ A solution of carbon tetrachloride in benzene, CoH6, at 20°C has a total vapor pressure of . 78.50 mmHg. (Assume that this solution i Ideal.) The vapor pressure of pure benzene at this temperature is 74.61 mmHg and its density is 0.87865 g/cm, the vapor pressure of pure carbon tetrachloride is 91.32 mmHg and its density is 1.5940 g/cm. What percentage of the volume of this solution is due to carbon tetrachloride? (Hint: assume that you have 1.000 L...
An aqueous sucrose, C12H22O11, solution is prepared. At 25C the vapor pressure of the solution is 1torr lower than the pure water vapor pressure of 23.8torr. What is the molal concentration of the sucrose solution?
Determine the vapor pressure of a 2.00 molar solution of potassium chloride in water at 50 ºC? (Density of solution = 1.01 g/mL, i = 1.85, and PoH2O= 92.5 mmHg)
What would be the vapor pressure of water at 96°C above a solution made by dissolving 21.69 g of potassium nitrate, KNO3, in 267.8 g of water? The vapor pressure of pure water at this temperature is 657.6 mmHg. Assume complete dissociation of solute.
a) The vapor pressure of pure water at 30°C is 31.8 torr. An aqueous solution of urea had a vapor pressure of 29.3 torrat the same temperature. What is the mole fraction of urea in the solution? b) How many grams of sucrose, C12H22O11(MW=342), must be dissolved in 552 g H2O (MW=18.016) to give a vapor pressure 2.0 torr lower than of pure H2O at 20°C? The VP of H2O at 20°C is 17.5 torr.
An aqueous solution containing glucose has a vapor pressure of 17.1 torr at 25 degrees C. What would be the vapor pressure of this solution at 45 degrees C? The vapor pressure of pure water is 23.8 torr at 25 degrees C and 71.9 torr at 45 degrees C. If the glucose in the solution were substituted with an equivalent amount (moles) of NaCl what would be the vapor pressure at 45 degrees C?