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+1 vote
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in Chemistry by (87.4k points)

An element of atomic mass 98.5 g mol-1 occurs n FCC structure. If its unit cell edge length is 500 pm and its density is 5.22 g cm-3, what will be the value of Avogadro's constant?  

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Best answer

 N = (4 x 98.5)/[5.22 x (500 x 10-10) 3] = 6.023 x 1023.

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