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September 17, 2014

September 17, 2014

Posted by **Vy** on Monday, March 7, 2011 at 1:49am.

- Chemistry -
**Graciela**, Monday, March 7, 2011 at 1:56amIs the mass of the lead 3.4 x 10^(-22)

or literally 3.4 x 10 - 22 or just 22g?

The problem has given you volume and density.

D = mass/ volume

You're trying to find mass, so your equation's going to be m= dv

m= 15. 82 g

Divide this by whatever your mass was, either 3.4 x 10^(-22)

or 3.4 x 10 - 22 or just 22g.

That number will be the number of lead atoms in the cube.

- Chemistry -
**Anonymous**, Wednesday, September 28, 2011 at 9:56pm4.6 x 10^-22

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