Question

hola ❤❤


Calculate the density of Silver which crystallies in face centred cubic form.


The distance between the nearest metal atoms is 287 pm.

(Molar mass of Ag : 107.84 )

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Answer 1

❂❂❂❂❂❂❂❂❂

ℍℰℛℰ ⅈՏ Ⴎℛ

 ᗅℕՏᗯℰℛ 

⬇️⬇️⬇️⬇️⬇️

for fcc a=1.414 where d distance b/w the nearest silver atoms

⇨

a=(1.414×287)pm

a=405.8pm

⇨

$405.8 \times {10}^{ - 10}$

Cm

⇨ aslo gor fcc Z = 4

⇨ d=(Z×M)/a^3 ×NA)

⇨=4×107.87/[(405.8×10^-10)^3 × 6.022 ×10^23]

⇨

$10.73g \: {cm}^{ - 3}$

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 ՎԾՄ 

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Answer 2

Heya mate your answer is in the attachment.

Hope this helps _____☺️☺️