Determine the osmotic pressure of a solution that contains 0.048 g of a hydrocarbon solute (molar mass = 340 g/mol) dissolved in benzene to make a 350-mL solution. The temperature is 20.0°C.

When 92.0 g of a compound is dissolved in 1000. g of water, the freezing point of the solution is lowered to –3.72°C. Determine the molar mass of the compound.

Polyethylene is a synthetic polymer or plastic with many uses. 1.36 g of a polyethylene sample was dissolved in enough benzene to make 100. mL of solution, and the osmotic pressure was found to be 1.86 torr at 25oC. What is the approximate molar mass of the polyethylene?

Assume 12,500 J of energy is removed from 36 grams of H2O at 115°C. a)  What is the state of the H2O after the energy is removed? b)  What is the final temperature of the H2O? c)  Draw a phase diagram for this process.  Identify where the start and end points are on the diagram.  

Calculate the osmotic pressure (in torr) of 6.00 L of an aqueous 0.958 M solution at 30.°C, if the solute concerned is totally ionized into three ions (e.g., it could be Na2SO4 or MgCl2).

Use the following drawing of a gaseous solute in equilibrium with a solution to help answer the question below.Which of the following statements are true when the piston is pushed in (downward)?

Which of the following is indicative of the existence of strong intermolecular forces of attraction in a liquid?

1.68 L of an aqueous solution containing 25.00 g of KCl dissolved in pure water is prepared. The molarity of the solution is:

Which statement about hydrogen bonding is true?

Which of the following is the correct answer to problem #19?