Calculate the amount of diffusion of acetic acid (A) in 2 hours across a film of non-diffusing water (B) solution 1 mm thick at 17 deg C when the concentration on opposite side of the film are 9 and 3 weight percent acid respectively. The diffusivity of the acetic acid in solution is 0.95 x 10-9 m2/s. At 17 deg C, the following additional data are available:Density of 3% and 9% solution are 1003 and 1012 kg/m3 respectively. Molecular weight of A and B are 60 and 18 respectively.

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air temperature increases as you move upward away from the ground?

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together