Posted by Dan on Monday, February 8, 2010 at 9:47pm.
# atoms/unit cell * molar mass/Avogadro's number = mass unit cell.
Calculate mass unit cell from
mass = volume x density. The only unknown is molar mass.
Post your work if you get stuck. The second problem is done essentially the same way. Try it. Repost if you run into trouble but show your work to the point you don't know how to continue.
thats wrong. dont listen to him
No that's correct. Im having trouble finding the # atoms/unit cell.
Remember these.
A bcc unit cell has 2 atoms/unit cell.
A fcc unit cell has 4 atoms/unit cell.
A simple cubic unit cell has 1 atom/unit cell.
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