February 23, 2017

Homework Help: science

Posted by hanan on Tuesday, July 24, 2012 at 11:13pm.

A sample of air contains 32.7 µg/m3
of beryllium dust. How many atoms of beryllium are
present in a room with dimensions of 8 feet by
13.6 feet by 15.6 feet?
Answer in units of atoms

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