In a C-14 dating measurement, a 1.00 g wood sample from a cave fielded 7900 counts over a 20hr period, while a 1.00g sample from a reasonably similar tree outside the cave fielded 18,4000 counts over the same period. How old is the sample from the cave given that the half life of C-14 is 5.73*10^3yr?
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In a C-14 dating measurement, a 1.00 g wood sample from a cave fielded 7900 counts...
A 10.00 g sample of wood from an archaeological site produced 3072 β particles in a 10-hour measurement owing to the presence of carbon-14, while a 10.00 g sample of new wood produced 9216 β particles in the same period of time. The half-life of carbon-14 is 5730 years. How old is the wood from the archaeological site?
Radiocarbon dating of a sample of wood from the tomb of an Egyptian pharaoh found that in the 1 gram of the sample there were 9.843 times 10^-15 mol of C-14 and 1.202 times 10^-2 mol of C-12. The C-14 isotope is radioactive and decays with a half-life of 5, 730 years: the C-12 isotope is stable (does not decay). If the initial ratio of these isotopes is known to have been Number of C-14/Number of C-12 = 1.20 times...
Planks from an old boat were found in a cave near the shore. Analysis of the boat's wood gave 13.6 disintegrations/min/g of carbon. The half-life of C-14 is 5730 years. Analysis of a tree cut down when the cave was found showed 15.3 disintegrations/min/g of C-14. In what century was the boat built?
Problem # 8 Discuss Radioactive Decay. Outline the Principles of Carbon Dating. Provide necessary Mathematical Equations. Total 250 Words Minimum. Solve the following 4 problems. Show Full Work. Problem # A: A chemist determines that a sample of petrified wood has a carbon-14 decay rate of 6.00 counts per minute per gram. What is the age of the piece of wood in years? The decay rate of carbon-14 in fresh wood today is 13.6 counts per minute per gram, and...
A 2.10-g sample of wood from an archaeological site gave 8600 disintegrations of 14C in a 10-hour measurement. In the same time, a 2.10-g modern sample gave 19000 disintegrations. Calculate the age of the wood. The half-life of carbon-14 is 5730 years.
Carbon-14 is a radioisotope that is used for dating biological organisms. The half-life of C-14 is 5730 years. When a one-gram sample of carbon from fresh peat is measured for radioactivity, 900 beta decays are recorded every hour. A one-gram sample of carbon is obtained from a peat deposit and is measured for radioactivity. If 113 beta decays are observed every hour, how many half-lives of C-14 have passed since the deposit was formed? A. 1/8 B.3 C.113 D.8 Approximately...