[Solved] Of an initial amount of 9000 g of lead-21

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Of an initial amount of 9000 g of lead-210, how much will remain in 140 years? Lead-210 decays at a rate of 3. 15%/yr. g

Of an initial amount of 9000 g of lead-210, how much will remain in 140 years? Lead-210 decays at a rate of 3. 15%/yr. g (Round to one decimal place as needed.)

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