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ChemistryNEET 2022

Chemistry question

Copper crystallises in an fcc unit cell with cell edge length of 3.608×10−83.608 \times 10^{-8} cm. The density of copper is 8.92 g cm−38.92\ \mathrm{g\,cm^{-3}}. Calculate the atomic mass of copper.

  1. A.65 u
  2. B.63.1 u✓
  3. C.31.55 u
  4. D.60 u

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

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