Question

X-ray diffraction studies show that copper crystallises is an fcc unit cell with cell edge of 3.608×10-8 cm .in a separate experiment cell is determined to have a density of 8.92 g/cm3 calculate the atomic mass of cu

Answer 1

In a separate experiment, copper is determined to have a density of 8.92 g/cm3, calculate the atomic mass of copper. 0.

Answer 2

${\huge{\underline{\underline{\mathcal{\red{♡ANSWER♡}}}}}}$.

• ❤..In case of ${fcc}$ lattice,number of atoms per unit cell, ${Z=4 atoms}$
• ❤.. Therefore,${M}$ =$\frac{dNA a^3}{z}$
• ❤..${8.92gcm^-3×6.022×10^23 atoms mol^-1×(3.608×10^-8cm)^3}{4 atoms}$
• ❤..${63.1g/mol}$
• ❤..${Atomic mass of copper = 63.1u}$.