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

science  drwls, Wednesday, July 25, 2012 at 8:17am
Compute the room volume in ft^3 and convert it to cubic meters.
8*13.6*15.6 = 1797 ft^3 = 50.9 m^3
With 32.7*10^6 g per m^3, there are 1.66*10^3 gram of Be dust in the room.
Convert that to moles using the atomic weight of Be (9.0 g/mol), and then use Avogadro's number for the number of atoms.
Answer This Question
Related Questions
 Chemistry  A sample of air contains 21.9ìg/m3 of beryllium dust. How many atoms...
 AP Chemistry  A sample of air contains 12.8 µg/m3 of beryllium dust. How many ...
 chem  A sample of air contains 14.5 µg/m3 of beryllium dust. How many atoms of ...
 ap  A sample of air contains 38.5 ìg/m3 of beryl lium dust. How many atoms of ...
 Geometry  the walls, floor, and ceiling of a room form a rectangular solid. The...
 math  he dimensions of Liz's desk are 3.2 feet wide and 4.6 feet long. Match ...
 math  a storage room measures 11.35 feet in length by 9.5 feet in width by 8.3 ...
 math  A storage room measures 14.25 feet in length by 12.5 feet in width by 8.4...
 math  Sam is going to tile a rectangular room that has an area of 64 square ...
 Math 6 scale math  A model of a rail road station has a scale of 1 inch equals ...
More Related Questions