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Iron has a body centred cubic unit cell with a cell edge of 286.65 pm. The density of iron is 7.87 g $cm^{−3}$. Use this information to calculate Avogadro's number (At. mass of Fe = 56 $g mol^{-1}$)

1 Answer

$6.04\times 10^{23}$
Hence (A) is the correct answer.
answered Jun 2, 2014 by sreemathi.v

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