Question
9. A sample of tritium-3 decayed to 94.5% of its original amount after a year
(a) What is the half-life of tritium-3?
(b) How long would it take the sample to decay to 20% of its original amount?

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9. A sample of tritium-3 decayed to 94.5% of its original amount after a year (a) What is the half-life of tritium-3? (b) How long would it take the sample to decay to 20% of its original amount?

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