6. The FINAL ANSWER to PROBLEM # 3 is:A. 3.7 X 102yearsB. 3.7 X 103yearsC. 3.7 X 104yearsD. 37.05 years E. 370.5 yearsF. 370 500 years APPLICATION: Having learned the process on how to do absolute datina through radiocarbon rdating, youare now rearlv to solve the following problems on absolute dating.1. If the amount of the parent isotope in the original sample of a rock had been 48 grams,about how much would have been left after three half-lives?2. A parent isotope has a half-life of 500 000 years. If a rock contained 10 mg of the parent isotope whenit formed, how much parent isotope would be left after 1.5 million years?3. A sample of wood from an Egyptian mummy case taken from an archaeological site is subjected toradiocarbon dating. The activity due to 14C has a specific activity of 10.41 d/min.g. The activity of acarbon sample of equal mass from fresh wood is 16.3 d/m.g. How old is the case?4. The remnants of an ancient fire in a cave in Africa showed a C decay rate of 3.9 counts per minuteper gram of carbon. If the decay rate in C-14 in freshly cut wood, is 13.6 counts per minute per gramof carbon, how many years ago did the campfire occur?5. A rock contains 0.257 mg of Pb-206 for everv milligram of U-238.The half-life for the decay of U-238to Pb-206 is 4.5 x 10°. How old is the rock?

Recall the following expression to find the age of wood which was used to make the case of Egyptian…

3. A sample of wood from an Egyptian mummy case taken from an archaeological site is subjected to radiocarbon dating. The activity due to 1"C has a specific activity of 10.41 d/min.g. The activity of a carbon sample of equal mass from fresh wood is 16.3 d/m.g. How old is the case?

3. A sample of wood from an Egyptian mummy case taken from an archaeological site is subjected to radiocarbon dating. The activity due to 1"C has a specific activity of 10.41 d/min.g. The activity of a carbon sample of equal mass from fresh wood is 16.3 d/m.g. How old is the case?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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According to Wikipedia, Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon. The method was developed in the late 1940s at the University of Chicago by Willard Libby, who received the Nobel Prize in Chemistry for his work in 1960. It is based on the fact that carbon- 14 is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting carbon-14 combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis; animals then acquire carbon-14 by eating the plants. When the animal or plant dies, it stops exchanging carbon with its environment, and thereafter the amount of carbon-14 it contains begins to decrease as the carbon-14 undergoes radioactive decay. Measuring the amount of carbon-14 in a sample from a…
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