1.) The reaction A(aq) ---> B(aq) + C(aq) is a first order reaction. The half-life of A(aq) is 94.8 s at 25.0oC and its half-life is 65.6 s at 45.0oC. What is its half-life (in s) at 65.0oC?3.) The half-life of 14C is 5730 years. A sample contains 90.8 % of the 14C that it would contain if it were still part of a living being. What is the age (in years) of this sample?

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Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter20: Kinetics

Section: Chapter Questions

Problem 20.89E: Label the elementary processes for the reaction between H2 and O2 see section 20.7 as initiation,...

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1.) The reaction A(aq) ---> B(aq) + C(aq) is a first order reaction. The half-life of A(aq) is 94.8 s at 25.0^oC and its half-life is 65.6 s at 45.0^oC. What is its half-life (in s) at 65.0^oC?

3.) The half-life of ¹⁴C is 5730 years. A sample contains 90.8 % of the ¹⁴C that it would contain if it were still part of a living being. What is the age (in years) of this sample?

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