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August 29, 2015

Homework Help: chemistry

Posted by Anonymous on Sunday, February 28, 2010 at 2:17pm.

How long will it take for 25% of the C-14 atoms in a sample of C-14 to decay? The half-life for the radioactive decay of C-14 is 5730 years.

If a sample of C-14 initially contains 1.1 mmol of C-14 , how many millimoles will be left after 2275 years?

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