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A Pure Sample of Tritium, 3H, Was Prepared and Sealed

question 59

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A pure sample of tritium, 3H, was prepared and sealed in a container for a number of years. Tritium undergoes decay with a half-life of 12.32 years. How long has the container been sealed if analysis of the contents shows there are 5.25 mol of 3H and 6.35 mol of 3He present?


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