Answer numbers 4 to 6 and refer to the picture below for the problem4. The FINAL ANSWER to PROBLEM # 2 is :A. 1.25x10-3 mg B. 12.5 grams C. 1.25 grams D. 1.25x10-3 gramsE. 1.25 micrograms5. As part of the solution in PROBLEM # 3, what is the natural logarithm (ln) of the ratio between the Carbon-14 activity of the wood found in the Egyptian mummuy case and the fresh wood? A. 0.448398222 B. 0.448398223C. 0.448398224 D. 0.448398225E. 0.268123449F. 0.268123448 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?

Note: If you get a question that has more than 1 question, please answer the first question, unless…

Answered: 2. A parent isotope has a half-life of…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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Question

Answer numbers 4 to 6 and refer to the picture below for the problem

4. The FINAL ANSWER to PROBLEM # 2 is :

A. 1.25x10^-3mg
B. 12.5 grams
C. 1.25 grams
D. 1.25x10^-3grams
E. 1.25 micrograms

5. As part of the solution in PROBLEM # 3, what is the natural logarithm (ln) of the ratio between the Carbon-14 activity of the wood found in the Egyptian mummuy case and the fresh wood?

A. 0.448398222
B. 0.448398223
C. 0.448398224
D. 0.448398225
E. 0.268123449
F. 0.268123448

6. The FINAL ANSWER to PROBLEM # 3 is:

A. 3.7 X 10²years
B. 3.7 X 10³years
C. 3.7 X 10⁴years
D. 37.05 years
E. 370.5 years
F. 370 500 years