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Chemistry, 28.10.2020 20:30 max280

3. The half life of Rn-222 is 3.823 days. What was the original mass of sample of this isotope if 0.0500 g. remains after 7.646 days?

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3. The half life of Rn-222 is 3.823 days. What was the original mass of sample of this isotope if 0....

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