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elitespart

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**1. surface water contains enough tritium to show 5.5 decays events per minute per 100. g of water. Tritium has a half-life of 12.3 years. You are asked to check a vintage wine that is claimed to have been produced in 1946. How many decay events per minute should you expect to observe in 100.g of that wine?**

I just need someone to point me in the right direction with this. I calculated k, but I'm having trouble figuring out how to get the number of decay events/min. Thanks.