# Solution - Integrated Rate Equations - Half-life of a Reaction

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#### Question

Derive the relation between half life and rate constant for a first order reaction

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During nuclear explosion, one of the products is 90Sr with half-life of 28.1 years. If 1μg of 90Sr was absorbed in the bones of a newly born baby instead of calcium, how much of it will remain after 10 years and 60 years if it is not lost metabolically.

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The integrated rate equation for first order reaction is A → products

(a) 

(b) k=-1/tl_n[A]_t/[A]_0

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Solution for concept: Integrated Rate Equations - Half-life of a Reaction. For the courses 12th HSC Science (Computer Science), 12th HSC Science (Electronics), 12th HSC Science (General)
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