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5. Carbon-14 is a radioactive substance produced in the Earth's atmosphere and then absorbed by plants and animals on the surface of the earth. It has a half-life of approximately 5730 years. Using this known piece of -At information, scientists can date objects such as the Dead Sea Scrolls. The function N = Noe" represents the exponential decay of a radioactive substance. N is the amount remaining after time t in years, No is the initial amount of the substance and A is the decay constant. Find the rate of change of an initial amount of 1 mg of carbon-14 found in the scrolls, if the decay constant is given as A = 1.21 x 10*. what is the current decay rate of a sample If the percentage of carbon-14 atoms remaining is 65%?

5. Carbon-14 is a radioactive substance produced in the Earth's atmosphere and then absorbed by plants and animals on the surface of the earth. It has a half-life of approximately 5730 years. Using this known piece of -At information, scientists can date objects such as the Dead Sea Scrolls. The function N = Noe" represents the exponential decay of a radioactive substance. N is the amount remaining after time t in years, No is the initial amount of the substance and A is the decay constant. Find the rate of change of an initial amount of 1 mg of carbon-14 found in the scrolls, if the decay constant is given as A = 1.21 x 10*. what is the current decay rate of a sample If the percentage of carbon-14 atoms remaining is 65%?

Chemistry
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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5. Carbon-14 is a radioactive substance produced in the Earth's atmosphere and then absorbed by plants and animals on the surface of the earth. It has a half-life of approximately 5730 years. Using this known piece of information, scientists can date objects such as the Dead Sea Scrolls. The function N = Noe represents the exponential decay of a radioactive substance. N is the amount remaining after time t in years, No is the initial amount of the substance and A is the decay constant. Find the rate of change of an initial amount of 1 mg of carbon-14 found in the scrolls, if the decay constant is given as A = 1.21 x 10o“. What is the current decay rate of a sample If the percentage of carbon-14 atoms remaining is 65%?
Transcribed Image Text:5. Carbon-14 is a radioactive substance produced in the Earth's atmosphere and then absorbed by plants and animals on the surface of the earth. It has a half-life of approximately 5730 years. Using this known piece of information, scientists can date objects such as the Dead Sea Scrolls. The function N = Noe represents the exponential decay of a radioactive substance. N is the amount remaining after time t in years, No is the initial amount of the substance and A is the decay constant. Find the rate of change of an initial amount of 1 mg of carbon-14 found in the scrolls, if the decay constant is given as A = 1.21 x 10o“. What is the current decay rate of a sample If the percentage of carbon-14 atoms remaining is 65%?
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