Cadmium (Cd) is a heavy metal which has a leaching rate of about 0.0012 mg/L per year. Consider a lake which has a volume of 2.25 x 10° L, and initially contains 0.002 kg of Pb. Determine the amount of Pb (in kg) present in the lake after 5.0 years assuming that there is no evaporation of water from the lake's surface.

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A:

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