Question

silver crystalized in face centred cubic structure the edge length of unit cell is found to be 408.7 pm calculate the density of silver atomic mass= 108 gram ​

Answer 1

the correct answer of this question is,516.7

Answer 2

Answer:

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CHEMISTRY

Silver crystallises in face centred cubic structure. The edge length of unit cell is found to be 408.7 pm. Calculate density of silver ( Atomic mass of Ag = 108 g/mol

−1

).

December 20, 2019avatar

Lalit Cheema

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ANSWER

Given:

The edge length of the unit cell, a=408.7pm =408.7×10

−10

cm

Atomic mass of silver, M= 108 g mol

−1

N

A

=6.022×10

23

mol

−1

The number of atoms in the unit cell of a FCC structure, n=4

Density of silver,

=

N×a

3

n×M

=

6.022×10

23

mol

−1

×(408.7×10

−10

cm)

3

4×108gmol

−1

Density of silver =10.51g/cm

3

Explanation:

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