Question 6 0.3 pts What is the vapor pressure of an aqueous solution containing 14% (by...
8. (6 pts) Determine the vapor pressure at 25 C of an aqueous ethylene glycol (CIO) solution at is 14.8% C,H602 by mass. The vapor pressure of pure water at 25 °C is 23.8 torr A) 3.52 tor B) 22.7 torr C) 1.14 torr D) 20.3 torr Show work:
question 3 pls 6. The vapor pressure of water at 20°C is 17.54 torr. Calculate the vapor pressure (in torr) of an aqueous solution containing 21.88 g of ethylene glycol (C H O2) in 71.22 g of water at 20°C.
Question 41 5 pts What is the change in vapor pressure when 52.9 g of ethylene glycol (molar mass 62 g/mol, nonelectrolyte) is added to 800 mL of H2O at 52.0°C. The vapor pressure of pure H20 at 52.0°C is 102.1 torr. The density of H2O at 52.0°C is 0.987g/mL. O 0.124 Torr 4.50 Torr 1.95 Torr 3.00 Torr
An aqueous solution of ethylene glycol, C2H6O2 has a vapor pressure of 22.4 torr at a temperature of 25 C. What would be the normal boiling point of this solution? the Kb of water is 0.52 C/m and the vapor pressure of water at 25 C is 23.8 torr.
A solution containing ethylene glycol and water has a vapor pressure of 4.87 torr at 10°C. Pure water has a vapor pressure of 9.21 torr at 10°C. What is the mole fraction of ethylene glycol in the solution? Be sure to report your answer to the correct number of significant figures.
q16 An aqueous solution containing glucose has a vapor pressure of 19.9 torr at 25°C. What would be the vapor pressure of this solution at 45°C? The vapor pressure of pure water is 23.8 torr at 25°C and 71.9 torr at 45°C. Vapor pressure torr If the glucose in the solution were substituted with an equivalent amount (moles) of NaCl, what would be the vapor pressure at 45°C? Vapor pressure torr
1. 1200 mL aqueous solution of 45 g of ethylene glycol and 80 g of sucrose were prepared with a density of 1.37 g/mL. Assume that the solution behaves ideally. Notes: The vapor pressures of water and ethylene glycol at 20 °C are 17.54 torr and 0.06 torr, respectively, and Kb and Kf of water are 0.51 K/m and 1.86 K/m, at 25 °C respectively. a. What is the freezing point of this solution? b. What is the vapor pressure,...
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
The liquid in automobile cooling systems is prepared by dissolving ethylene glycol (HOCH_2CH_2OH) in water. Ethylene glycol has a molar mass of 62. 07 g/mol and a density 1. 115 g/ml at 50. 0 degree C. Calculate the vapor pressure at 50 degree C of a coolant solution that is 51. 0: 49. 0 ethylene glycol to water by volume At 50. 0degree C the density of water is 0. 9880 g/ml, and its vapor pressure is 92 torr. The...
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...