Question

A piece of iron of volume 60 cm cube has a mass of 468 gram the density of iron is

Answer 1

Explanation:

density =mass/volume

so , put the value ..

density = 468/60

= 8.1 gm/cm

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Answer 2

Answer:

a = 286.65 pm

=286.65×10

−10

cm

Density (ϵ)=7.874 g cm

−3

At mass of Fe= 56.0u

Z=2(for body centered cubic unit cell)

Avogadro number (N

0

​

)=?

p=

a

3

×N

0

​

Z×M

​

7.874 gcm

−3

=

(286.65×10

−10

cm)

3

×N

0

​

2×(56.0gmol

−1

)

​

N

0

​

=

(286.65×10

−10

cm

3

)×(7.874gcm

−3

)

2×(56 gmol

−1

)

​

=6.022×10

23

mol

−1

Explanation:

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