Calculate the osmotic pressure across a semipermeable membrane separating pure water from seawater at 25°C. The total concentration of all the ions in seawater is 1.190 M.

The dispersed phase of a certain colloidal dispersion consistes of spheres of diameter 1.0 x 102 nm. What are the volume and surface area of each sphere? V = _ and SA = _ How many spheres are required to give a total volume of 1.0 cm3? What is the total surface area of these spheres in square meters? _ spheres, total SA = _ m2 The dispersed phase of a certain colloidal dispersion consistes of spheres of diameter 1.0 x 102 nm.

The vapor pressure of an aqueous solution of barium chloride at 26 °C is 0.03172 atm. The vapor pressure of pure water at the same temperature is 0.03316 atm. Estimate the freezing point of the solution. For water, Kfp = 1.86 °C/m. °C

What is the mole fraction of solvent in a solution of aqueous sucrose (a nonelectrolyte) that has a vapor pressure of 23.47 torr at 25 °C? The vapor pressure of pure water at 25 °C is 23.77 torr.