A beaker contains two compartments (A and B) with equal volumes of solution separated by an artificial membrane with a pore size of 24 Angstrom (Å) A. Explain the net movement of solute after eight hours if: 1. Compartment A has 18% Sucrose while compartment B has 2% sucrose (diameter of Sucrose molecule = 9 ÅJ 2. Compartment A has 2.0 MNACI while compartment B has 5% potassium iodide (Na radius 0.28 Å: Cl diameter = 3.7 Å: and potassium iodide radius = 1.4 Å) %3D 3. Compartment A has 3% albumin while compartment B has 2% potato starch (albumin diameter = 38 Å; potato starch = 300,000-1000000 Ă)

6. Identify the two species within the carbonate system that are the most relevant to the following situations, and identify the associated equilibrium constant: a. Dissolution of an Alka-Seltzer tablet (sodium bicarbonate, citric acid, aspirin) in water to create an effervescent pain-relieving drink. b. The effects of ocean acidification on the health of coral reefs.

Advection, diffusion, and reaction in a channel Approximately 50 m3 of an agricultural pesticide with an initial concentration of 1.6 × 105 mol/m3 have been spilled into a stream following a train derailment. You have been called in to predict the aqueous concentrations of this pesticide at various points along the stream, and the mass that will be delivered to a lake with critical habitat 70 km downstream. You look up the main component of the pesticide and see that it degrades in water (due to hydrolysis reaction) with a half-life of 1.9 h. The discharge rate of the stream is 75,000 L/min. It has an average depth of 0.3 m and an average width of 1.2 m. a. Calculate the maximum concentration (in mol/L) of the pesticide that will be observed at a town 10 km downstream and at the point where the stream reaches the lake, 70 km downstream. Assume a sheer velocity of 0.40 m/s. b. Plot the concentration of this pesticide entering the town and the lake with time. Care should be taken when…

For the vessel containing glycerin under pressure as shown in Fig. 2-2, find the pressure at the bottom of the tank. 50 kPa Glycerin 2 m Fig. 2-2