# 1. An ancient club is found that contains 200 g of pure carbon and has an...

###### Question:

1. An ancient club is found that contains 200 g of pure carbon and has an activity of 7.5 decays per second. Determine its age assuming that in living trees the ratio of (14C12C)(14C12C) atoms is about 1.30×10−121.30×10−12. Note that the half life of carbon-14 is 5700 years and the Avogadro number is 6.02×10236.02×1023.

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