A soluation of HO-CH2-CH2-OH is prepared by dissolving 651g of ethylene gylcol in 1.50kg of water. Determine the freezing point of the soluaiton and the vapor pressure of water above the solution 25.0 degrees C. The normal freezing point of water is water is 0.00 degrees C with a freezing oint depression constant of 1.86 degrees C/m, and the vapor pressure of pure water at 25.0 degees C is 23.8 torr.© BrainMass Inc. brainmass.com October 24, 2018, 6:15 pm ad1c9bdddf
The solution is provided in two differently formatted attachments (.doc and .pdf) and is completed step-by-step equationally.
Properties of solutions - Propylene Glycol
9) Calculate the mass of propylene glycol (C3H8O2) that must be added to 0.340 kg of water to reduce the vapor pressure by 2.88 torr at 40 °C.
10) Calculate the freezing point and boiling point of an antifreeze solution that is 50.0 % by mass of ethylene glycol (C2H6O2) in water.
11) Calculate the freezing point and boiling point of a barium chloride solution that is 4.0 % by mass of barium chloride in ethanol.
13) What is the osmotic pressure of a solution formed by dissolving 44.2 mg of aspirin (C9H8O4) in 0.358 L of water at 25 °C?View Full Posting Details