Concept explainers
Interpretation: Given its half life, time taken by a
Concept introduction: Half-life of a radioactive sample is the time taken by it to reduce its concentration to half. Formula used to calculate the amount of sample left after half-lives is
Answer to Problem 7RQ
Time taken by a
Explanation of Solution
Half-life of the givenradioactive sample
Formula used to calculate the amount of sample left after half-lives is
Fraction of radioactive sample left
Equating (1) and (2),
So it took 3 half-lives for the given radioactive sample of
Time taken
Time taken by a
Chapter 19 Solutions
World of Chemistry, 3rd edition
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