) Initially 200 millions of radioactive substance was present. After 12 hours the mass has decreased by 6%. If the rate of decay is proportional to the amount of substance present at time t find the amount of remaining after 48 hours. B)Determine the half-life of the radioactive substance described in Problem A.
) Initially 200 millions of radioactive substance was present. After 12 hours the mass has decreased by 6%. If the rate of decay is proportional to the amount of substance present at time t find the amount of remaining after 48 hours. B)Determine the half-life of the radioactive substance described in Problem A.
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter25: Nuclear Chemistry
Section: Chapter Questions
Problem 48GQ
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A) Initially 200 millions of radioactive substance was present. After 12 hours the mass has decreased by 6%. If the rate of decay is proportional to the amount of substance present at time t find the amount of remaining after 48 hours.
B)Determine the half-life of the radioactive substance described in Problem A.
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