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The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 2.000-mg sample remain after 6.55 years?

lulalu

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The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 2.000-mg sample remain after 6.55 years?

The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 2.000-mg sample remain after 6.55 years?
A) 0.837
B) 3.23 10-15
C) 4.779
D) 1.588
E) 1.163

Textbook

Chemistry: A Molecular Approach

Chemistry: A Molecular Approach

Edition: 4^th

Author: Tro

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sfddfk833

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