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States of Matter: Solid State
A unit cell of Nacl has four formula units. The edge length of unit cell is 0.564. The density of Nacl is
$(a)\;2.16g/cm^3\qquad(b)\;4.32g/cm^3\qquad(c)\;0.216g/cm^3\qquad(d)\;21.6g/cm^3$
jeemain
chemistry
class12
ch1
states-of-matter
solid-state
calculations-involving-unit-cell-dimensions
easy
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asked
Feb 25, 2014
by
sharmaaparna1
retagged
Jul 15, 2014
by
balaji.thirumalai
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1 Answer
Density = $\large\frac{n\times at.wt}{N_A \times a^3}$
$=\large\frac{4\times58.5}{6.023\times10^{23}\times(5.64\times10^{-8})^3}$
$ = 2.16 g/cm^3$
Hence answer is (a)
answered
Feb 25, 2014
by
sharmaaparna1
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