Question

Can you hep me out with this ?
https://www.dropbox.com/s/p824cth4ditbihg/Screenshot%202013-11-01%2020.03.54.jpg

Answer 1

i'm not all that great at chemistry, but If no one else comes to help, i'd do the first part like this:
\[9.27x10^{-26} g \times \frac{ cm^3 }{ 7.87 g } = ? cm^3\]this way the units of grams cancel out, and all that is left is cm^3 which is a measurement unit of volume.

as for Part B, there is going to be an equation from your notes or books that discusses the distance between electrons.

Answer 2

Thanks a lot

Answer 3

you bet ^_^

Answer 4

How would you solve (B) @DemolisionWolf

Answer 5

@Christos for part B, there needs to be an equation for electron distance or something in you book i'd imagine. chemistry isn't a strength of mine