A 6.2 mg sample of 90Sr (half-life 29.12 y) is in secular equilibrium with its daughter 90Y

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A 6.2 mg sample of 90Sr (half-life 29.12 y) is in secular equilibrium with its daughter 90Y (half-life 64.0 h).

(a) How many Bq (Becquerel’s) of 90Sr are present?

(b) How many Bq of 90Y are present?

(d) What will the activity of 90Y be after 100 years?

Related Book For answer-question

Chemistry

ISBN: 978-0077274313

10th edition

Authors: Raymond Chang

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Posted Date: Oct 08, 2018 12:23 AM

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A 6.2 mg sample of 90Sr (half-life 29.12 y) is in secular equilibrium with its daughter 90Y

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Secular Equilibrium sr N sr y N y N sr y sr N r T 12sr T 12 ... View the full answer

Chemistry

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