For samples 1, 2 and 3: A. determine the D/P ratio in the table below (calculate each value to 1 decimal place). B. If thedecay constant (A) for the radioactive decay of 40K is A = 5.543 x 10-10 year -1 and half-life 1.248 billion years, determine theage of the samples in billion years (calculate each value to 2 decimal places). C. Using the half-life, complete the Half-.(lives Elapsed column in the table (calculate each value to 1 decimal placeHalf-lives elapsedAge in billion yearsD/P RatioDaughter Parent Sample10000500010000250075001250Please answer all parts of the questionBecause 14C has a very short half-life, the 14C method is useful in dating organic material only as old as about 70,000 years.Laboratory work established a relationship between the "specific activity" of an organic substance and its age. Specificactivity is a measure of the amount of remaining 14C, expressed as pmc (percentage of modern carbon). The 14C age is:calculated asa, 14ct =-8267 In(where at 14C is the measured 14C activity and a, 14C is the initial activity (- 100 pmc). If the 14C activity in a sample Xis measured to be 68 pmc, how old is the sample? Age =yearsالجواب

As per rule, only the first question can be answered. Decay constant (λ) = 5.543 x 10-10 year-1 1…

For samples 1, 2 and 3: A. determine the D/P ratio in the table below (calculate each value to 1 decimal place). B. If the decay constant (A) for the radioactive decay of 40K is A = 5.543 x 10-10 year 1 and half-life 1.248 billion years, determine the age of the samples in billion years (calculate each value to 2 decimal places). C. Using the half-life, complete the Half- .(lives Elapsed column in the table (calculate each value to 1 decimal place Half-lives elapsed Age in billion years D/P Ratio Daughter Parent Sample 10000 5000 10000 2500 7500 1250 3

For samples 1, 2 and 3: A. determine the D/P ratio in the table below (calculate each value to 1 decimal place). B. If the decay constant (A) for the radioactive decay of 40K is A = 5.543 x 10-10 year 1 and half-life 1.248 billion years, determine the age of the samples in billion years (calculate each value to 2 decimal places). C. Using the half-life, complete the Half- .(lives Elapsed column in the table (calculate each value to 1 decimal place Half-lives elapsed Age in billion years D/P Ratio Daughter Parent Sample 10000 5000 10000 2500 7500 1250 3

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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