November 30, 2015

Homework Help: math/chem

Posted by Joe on Monday, August 23, 2010 at 10:13pm.

it is estimated that uranium is relatively common in the earth's crust, occurring in amounts of 4 g/metric ton. a metric ton is 1000kg. at this concentration, what mass of uranium is present in 1.0 mg of earth's crust?

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