Homework Help: Science

Posted by Nicole on Saturday, August 13, 2011 at 4:30pm.

Carbon-14 has a half-life of about 5,600 years. Archaeologists analyze a piece of wood found at an ancient village site and determine that, of he initial 100 grams of Carbon-14 in the wood, onl 3.125 grams are left. How old is the wood?

Science - bobpursley, Saturday, August 13, 2011 at 5:29pm
3.125=100(1/2)^n/thalf

take log both sides...

log(3.125)=2+n/thlaf (log.5)
so solve for n, then grab you calculator and have fun.

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