A laboratory investigation shows that a sample of uranium ore contains 7.92 mg of 23892U (molar mass 238.05079 g/mol) and 1.85 mg of 20682Pb (molar mass 205.97447 g/mol). Calculate the age of the ore. The half-life of 23892U is 4.5×109 yr. ____yr A laboratory investigation shows that a sample of uranium orecontains 7.92 mg of 298U (molar mass 238.05079 g/mol) and 1.85 mg of 206 Pb (molar mass 205.97447 g/mol). Calculate the age of the ore. The half-life of 238 U is92824.5×10⁹ yr.yr

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Chemistry

10th Edition

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A laboratory investigation shows that a sample of uranium ore contains 7.92 mg of 23892U (molar mass 238.05079 g/mol) and 1.85 mg of 20682Pb (molar mass 205.97447 g/mol). Calculate the age of the ore. The half-life of 23892U is 4.5×10⁹ yr. ____yr

A laboratory investigation shows that a sample of uranium ore
contains 7.92 mg of 298U (molar mass 238.05079 g/mol) and 1.85 mg

of 206 Pb (molar mass 205.97447 g/mol). Calculate the age of the ore. The half-life of 238 U is
92
82
4.5×10⁹ yr.
yr

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