Tritium
Homework Answers
Hi!
The first step for this problem is to solve for "k" -- the rate at which Tritium decays. We know that the half life formula looks like this:
The problem tells us that the half life is 12.5 years. This means that if we have 1g of Tritium, in 12.5 years we will have 0.5 grams (half asmuch). Lets use that information to solve for the rate at which Tritium decays:
Now we are ready to find out how old a bottle of wine is that contains 25% the Tritium of a new bottle of wine. This time we are using "k" fromstep 1 to solve for the time. We will use the same idea regarding amounts-- If the new bottle of wine contains 1g of Tritium, the old bottle withonly 25% would contain 0.25 grams.
I hope this helps! Please rate if it does :)
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