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Class 12
Chemistry
The Solid State
copper crystallises into a fcc lattice with edge l...

Question:
Copper crystallises into a fcc lattice with edge length 3.61 x 10^-8cm. Show that the calculated density is in agreement with its measured value of 8.92 g cm^-3.

Answer:

In fcc lattice Z= 4

Atomic mass M = 63.5

a = 3.61x10^-8

Therefore from the formula density = ZxM/a³ x N₀

We get density = 4x 63.5/3.61x10^-8 x 6.022 x10²³

= 8.96 gcm^-3.

The value is approximately equal to 8.92.

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Question:
Copper crystallises into a fcc lattice with edge length 3.61 x 10^-8cm. Show that the calculated density is in agreement with its measured value of 8.92 g cm^-3.

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Question: Copper crystallises into a fcc lattice with edge length 3.61 x 10-8cm. Show that the calculated density is in agreement with its measured value of 8.92 g cm-3.

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Question:
Copper crystallises into a fcc lattice with edge length 3.61 x 10^-8cm. Show that the calculated density is in agreement with its measured value of 8.92 g cm^-3.