Radioactive decay
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I have been stuck on this problem for ever! I am not good with ratios and I have no idea what equation I need to solve this problem. Please help, thank you.
The half-life of tritium is approximately 12 years. What will be the molar ratio of tritium to helium-3 in a sealed sample after 25 years?
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The solution shows how to use the concept of half-life to a decay problem.
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