February 26, 2017

Homework Help: chem

Posted by pho le on Tuesday, February 1, 2011 at 11:52pm.

A sample of air contains 14.5 µg/m3
of beryllium dust. How many atoms of beryllium are
present in a room with dimensions of 11 feet
by 13.9 feet by 17.5 feet?
Answer in units of atoms.

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