Answer to Question #232055 in General Chemistry for Rowel

Question

6. You are given a small bar of an unknown metal. You find the density of the metal to be 18.6 g/cm3. An x-yar diffraction experiment measures the edge of the face-centered cubic unit cell as 4.13 x 10-10m. Find the atomic weight (in g/mol) of this metal and assess its identity.

Answer 1

18.6 × 10 ^-10 × 4.13

= 76.818 × 10^-10 × 6.023 × 10²³

=462.67 g/mol