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ChemistryPrinciples of Instrumental AnalysisThe sample of PbSO 4 which consist 1-microcurie of Pb-200 and the half-life of this sample is 21.5h. The storage period is to be determined for the activity which is required for the activity which is less than 0.001 microcurie. Concept introduction: According to first order of kinetics: ln ( N N 0 ) = − λ t Here, N and N o are final and initial concentrations, λ is decay constant and t is time. t 1 / 2 ( h a l f − t i m e ) = ln 2 λ Or, t 1 / 2 = 0.693 λ Here, t 1 / 2 is half-life time.Start your trial now! First week only $4.99!*arrow_forward*

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7th Edition

Douglas A. Skoog + 2 others

Publisher: Cengage Learning

ISBN: 9781305577213

Chapter 32, Problem 32.4QAP

Interpretation Introduction

**Interpretation:**

The sample of PbSO_{4} which consist 1-microcurie of Pb-200 and the half-life of this sample is 21.5h. The storage period is to be determined for the activity which is required for the activity which is less than 0.001 microcurie.

**Concept introduction:**

According to first order of kinetics:

Here, N and N_{o} are final and initial concentrations,

Or,

Here,