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Rates of Radioactive Decay (Section)Potassium-40 decays to

Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward

Problem 41E Chapter 21

Chemistry: The Central Science | 12th Edition

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Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward

Chemistry: The Central Science | 12th Edition

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Problem 41E

Rates of Radioactive Decay (Section)

Potassium-40 decays to argon-40 with a half-life of 1.27 × 109 yr. What is the age of a rock in which the mass ratio of 40Ar to 40K is 4.2?

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GEOL 207 Environmental Geology Atmosphere - Nitrogen (N2) = 78% - Oxygen (O2) = 21% o Photosynthesis - Argon (Ar) = 0.9% o Stable and do not want to react - Carbon Dioxide (CO2) = 0.039% o Goes up and down. Has recently been going up - Water (H2O) = 10^-5% -- > 4% Nitrogen / Oxygen / and Argon Do NOT have a GRENHOUSE EFFECT...

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Chapter 21, Problem 41E is Solved
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Textbook: Chemistry: The Central Science
Edition: 12
Author: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward
ISBN: 9780321696724

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