4. (10 pts ) A surface water sample TABLE 3.5 from the Bahamas Banks has a salinity =35.350ppt, a temperature of 25C, and a carbonate ion concentration of 120.0mol/kg. If the apparent K ' for aragonite at these in situ conditions is 8.2107mol2kg2, could aragonite precipitate abiotically from this water (calculate ) and explain? Use Table 3.5 to calculate your answer. Source: Averaged results from F. Culkin and R. A. Cox, reprinted with permission from Deep-Sea Research, vol. 13. p. 801. copyright 1966 by Pergamon Press, Elmsford, NY: and from J. P. Riley and M. Tongudai, reprinted with permission from Chemical Geology, vol. 2, p. 265, copyright o 1967 by Elsevier Science Publishers. Amsterdam. The Netherlands