Homework Help: chemistry

Posted by Dewayne on Sunday, June 17, 2012 at 9:01am.

Calculate the residence time of sodium in millions of years if the total amount of sodium in the oceans is 1.5 x 10 to the 22 grams, and is supplied to the ocean at a rate of 2.2 x 10 to the 14 grams per year.

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