Chemistry, 20.10.2020 02:01 littleprinces

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

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The half-life of Rn-222 is 3.823 day. What was the original mass of a sample of this isotope if 0.0...

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