The Question : Approximately how old is a fossil with 12 g of Carbon -14 if it initially possessed 32 g of Carbon -14? (Given log 2.667 = 0.4260)
Solution for the question :
t = 2.303/ k log (Co/Ct)
Co = 32 g
Ct = 12 t = ?
k = 0.693/6000 (half life given in passage)
substituting in equation:
t = 2.303 / (0.693/6000) log 32/ 12
t = 2.303 x 60000 /0.693 log 2.667
t = 2.303x6000x0.4260 /0.693
= 8494 years
The correct answer to the question is researched by our moderators and shared with you. You can give feedback by commenting for the answers you think are wrong.