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radium-224 has a life-life of 3.66 days. what was the mass of the original sample of radium-224 if 0.0500 g remains after 7.32 days?
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radium-224 has a life-life of 3.66 days. what was the mass of the original sample of radium-224 if 0.0500 g remains after 7.32 days?

User Stesch
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Answer: 0.2 g

Step-by-step explanation:

User Stadub Dima
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