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Using the data given below, calculate the residence times of the solutes in seawater. The amount of water flowing from rivers to oceans = 3.74 x 10^19 g yr-1 , and the amount of water in oceans = 1.35 x 10^24. What is the residence times of these solutes in seawater?
River Concentration (ppm)Cl - 6 Na - 5 SO4 - 8 Mg - 3 Ca - 13 K - 1 H CO3 - 52 Si - 10
Seawater concentration (ppm) Cl - 19350 Na - 10786 SO4 - 2712 Mg - 1294 Ca - 412 K - 399 HCO3 - 145 Si - 10

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