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September 3, 2015

Homework Help: College Chemistry

Posted by Jude on Thursday, May 5, 2011 at 9:26pm.

A rock containing 238U and 206Pb was examined to determine its appropriate age. The molar ratio of 206Pb to 238U was 0.1462. Assuming no lead was originally present and that all lead formed remained in the rock. What is the age of the rock in years? The half life of 238U is 4.500*10^9yr

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