February 21, 2017

Homework Help: Chemistry

Posted by Cheyenne on Thursday, September 23, 2010 at 8:46pm.

A sample of air contains 21.9ìg/m3 of beryllium dust. How many atoms of beryllium are present in a room with dimensions of 8 feet by 12.3 feet by 18.3 feet? Answer in units of atoms.

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