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August 31, 2014

Homework Help: Chem 3A

Posted by shylo on Saturday, July 5, 2008 at 5:28pm.

please help me with this chemistry problem.

Half-Life

A radium-226 sample initially contains 0.112 mol. How much radium-226 is left in the sample after 6400 years? The half-life of radium-226 is 1600 years.

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