Question 41 5 pts What is the change in vapor pressure when 52.9 g of ethylene...
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...
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:
Calculate the mass of ethylene glycol (C2H6O2) that must be added to 900 g of ethanol (C2H5OH) to reduce its vapor pressure by 12.0 torr at 35°C. The vapor pressure of pure ethanol at 35°C is 100 torr.
Question 6 0.3 pts What is the vapor pressure of an aqueous solution containing 14% (by weight) ethylene glycol (62 g/mol) at 25°C. PH20- 24.3 torr at 25°C.
Calculate the mass of ethylene glycol (C2H6O2 - molar mass =62.07 g/mol) that must be added to 1.00 kg of ethanol (C2H5OH- molar mass =46.07 g/mol) to reduce its vapor pressure by 10.0 torr at 35 degree C. The vapor pressure of pur ethanol at 35 degree C is 100 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,...
Name --------- Show all work if you want to get partial credit. Good Luck! 1a. For each of the following compounds, predict whether you would expect it to be more soluble in water or hexane (C6H14). (a) 12 ------- (b) CaCl2 ---------- (c) HBr -- (d) C&H,OC4H, --- (e) CH3NH2 -------- 1b. Arrange the following aqueous solutions according to increasing freezing point: 0.2m glucose, 0.1m CaCl2, 0.1m MgSO4, 0.1m Na3PO4 (m is molality). Lowest f.p. ----- --------- highest f.p. 2....
Glycerin, C3HgO3, is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 163 g glycerin to 338 mL H20 at 39.8°C? The vapor pressure of pure water at 39.8°C is 54.74 torr and its density is 0.992 g/cm² Psoin 28 torr
Explain2 The vapor pressure of a solution containing 73.6 g glycerin (C_3H_8O_3, Molar mass 92.094) in 120.7 g of ethanol (C_2H_5OH, Molar mass = 46.068) is 169.3 torr at 50.0 degree C Calculate the vapor pressure of pure ethanol at 40.0 degree C assuming that glycerin is a nonvolatile, nonelectrolyte solute in ethanol.
[References] What volume of ethylene glycol (C2HO2), a nonelectrolyte, must be added to 12.0 L water to produce an antifreeze solution with a freezing point of-19.0°C? (The density of ethylene glycol is 1.11 g/cm°, and the density of water is 1.00 g/cm³. K, for water is 0.51°C•kg/mol and Kf is 1.86°C kg/mol.) Volume %3D What is the boiling point of this solution? Boiling point °C %3D 5 item attempts remaining Submit Answer Try Another Version [References] Consider an aqueous solution...