Question

1:if
mass of a metal cube is 600 g and one side is 0.2 m
them what's the density of that metals​

Answer 1

Answer:

12th

Chemistry

The Solid State

Number of Atoms in a Unit Cell

A metal crystallizes in FCC...

CHEMISTRY

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Asked on December 20, 2019 by

Yashwant Teju

A metal crystallizes in FCC structure. Calculate the atomic mass of metal,If the edge length of the unit cell is 404pm and its density is 2.7gcm

−3

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ANSWER

Given, cell is FCC, z=4

Edge length, a=404pm=4.04×10

−8

cm

Density of metal, d=2.72gcm

−3

N

A

=6.02×10

23

mol

−1

Mass of the metal, M=?

We know,

d=

a

3

×N

A

z×M

M=

z

d×N

A

×a

3

M=

4

2.72×(4.04×10

−8

)

3

×6.02×10

23

Mass, M=27g mol

−1 hope so it will be useful to you dear