Rubidium-87 decays by B production to strontium-87 with a half life of 4.7 x 1010 years. What is the age of a rock sample that contains 108.3 µg87Rb and 4.9ug 87Sr ?years oldAssume that no 8/Sr was present when the rock was formed.The atomic masses are given in the table below:NuclideAtomic Mass87Rb86.9091987sr86.90888

Radioactive decay reactions follow first order kinetics.

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Rubidium-87 decays by B production to strontium-87 with a half life of 4.7 × 1010 years. What is the age of a rock sample that contains 108.3 µg 87Rb and 4. ug 87Sr ? years old

Chemistry

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ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

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Question

Rubidium-87 decays by B production to strontium-87 with a half life of 4.7 x 1010 years. What is the age of a rock sample that contains 108.3 µg
87Rb and 4.9
ug 87Sr ?
years old
Assume that no 8/Sr was present when the rock was formed.
The atomic masses are given in the table below:
Nuclide
Atomic Mass
87Rb
86.90919
87sr
86.90888

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