A rock contains a Pb-206 to U- 238 mass ratio of 0.262: 1.00. Assuming that the rock did not contain any Pb-206 at the time of formation, determine its age. half life of U-238 is 4.5 X 10^9 years molar mass of Pb-206 is 205.97444 g/mol molar mass of U-238 is 238.05079 g/mol

Chemistry: The Molecular Science
5th Edition
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Author:John W. Moore, Conrad L. Stanitski
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Chapter18: Nuclear Chemistry
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A rock contains a Pb-206 to U- 238 mass ratio of 0.262: 1.00. Assuming that the rock did not contain any Pb-206 at the time of formation, determine its age.

half life of U-238 is 4.5 X 10^9 years

molar mass of Pb-206 is 205.97444 g/mol

molar mass of U-238 is 238.05079 g/mol

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