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JEE Main 202125 FebruaryEvening Shift
Exam
JEE Main
Year
2021
Date
25 February
Shift
Evening Shift
Subject
Chemistry
Chapter
Solid State

JEE Main 2021 · 25 February · Evening Shift · Chemistry · Solid State

The unit cell of copper corresponds to a face centered cube of edge...

The unit cell of copper corresponds to a face centered cube of edge length 3.596A˚3 . 596Å with one copper atom at each lattice point. The calculated density of copper in kg/m3kg / {m}^{3} is ___ . [Molar mass of Cu:63.54g;Cu: 63 . 54g; Avogadro Number =6.022×1023J= 6 . 022 \times {10}^{23}J]

Correct answer

0

Step-by-step solution

FCC,

d=Z×MNA×a3=4×63.541000×6.022×1023×(3.596×10−10)3d = \dfrac{Z \times M}{{N}_{A} \times {a}^{3}} = \dfrac{4 \times 63 . 54}{1000 \times 6 . 022 \times {10}^{23} \times {\left(3 . 596 \times {10}^{- 10}\right)}^{3}}

=9076kg/m3= 9076kg / {m}^{3}

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