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Ion Conc. Units Cl- 18.980 ‰ Na+ 10.560 ‰ SO42- 2.560 ‰ Mg2+ 1.272 ‰ Ca2+ 0.400 ‰ K+ 0.380 ‰ HCO3- 0.142 ‰ Br- 0.065 ‰ B(OH)4- 4.6 ppm Sr2+ 13 ppm O2 ? F- 1.4 ppm Rb+ 0.2 ppm Al3+ 0.17 ppm Li+ 0.1 ppm Ba2+ 0.05 ppm I- 0.05 ppm A scientist wishes to prepare a one-liter sample with the approximate composition of seawater for use in the laboratory. What reagents would you recommend and what mass of each one would you use to match the concentrations of Na+, Cl-, Mg2+, Ca2+ and SO42- given in the table above? Do not include ions that are not listed in the table. You might want to think about how seawater came to have the composition we observe.

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