A sample of rock was found to contain 4.43 x 105 mol of 40K and 2.51 x 105 mol of 40 Ar. If we assume that all of the 40 Ar came from the decay of 40K, what is the age of the rock in years? (t1/2 = 1.3 x 10 years for 40K) i 1.28 x 10 9 yrs
A sample of rock was found to contain 4.43 x 105 mol of 40K and 2.51 x 105 mol of 40 Ar. If we assume that all of the 40 Ar came from the decay of 40K, what is the age of the rock in years? (t1/2 = 1.3 x 10 years for 40K) i 1.28 x 10 9 yrs
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter21: Nuclear Chemistry
Section: Chapter Questions
Problem 21.41QE
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![A sample of rock was found to contain 4.43 x 105 mol of 40K and 2.51 x 105 mol of 40 Ar. If we assume that all of the 40 Ar came from
the decay of 40K, what is the age of the rock in years? (t₁/2 = 1.3 x 10⁰ years for 40K)
i
1.28
x 10
i9
yrs](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3ddddc77-0339-446d-bf7d-eecbef4bcabb%2F7f89fd89-82db-480e-91cf-b98447717f8f%2Fl1ccpo9_processed.png&w=3840&q=75)
Transcribed Image Text:A sample of rock was found to contain 4.43 x 105 mol of 40K and 2.51 x 105 mol of 40 Ar. If we assume that all of the 40 Ar came from
the decay of 40K, what is the age of the rock in years? (t₁/2 = 1.3 x 10⁰ years for 40K)
i
1.28
x 10
i9
yrs
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