1. Work Problem 29a in Chapter 2. Then do Problem 29b in Chapter 2. Then plot the fluid composition on a 2-D diagram that illustrates the congruent dissolution of chrysotile. Assume that molar and molal compositions are equal and that the solutions are behaving ideally.

29. Asbestos minerals are considered to be a health hazard. The most common type of asbestos is chrysotile, and this mineral comprises about 95% of the asbestos in the United States. Small asbestos fibers can be taken into the lung, where they interact with the lining of the lung. This problem deals with the solubility of chrysotile asbestos in the lung. A later problem deals with the rate at which chrysotile fibers will break down in the lung, The dissolution reaction for chrysotile can be written MgSi,O.COH)style + 6H - 3Mg2+ + 2H SiOraq + H.O Use the thermodynamic data from Appendix II, source 3. for the following cal- culations a. Calculate the equilibrium constant for this reaction at T = 37C, the average tem perature of the human body b b. For fluid in lung tissues, pH = 4, Mg? = 8.7 X 10 mol L . and x . HASIO = 1.5 X 10"mol L-Assume activity equals concentration. Are the lung fluids under or oversaturated with respect to chrysotile? Give a numerical answer Rela