Metallic copper crystallizes in a face-centered cubic lattice. The volume of the unit cell is 4.11 *10⁸ pm³. What is the density of copper metal?

Question

Quizplus · Accepted Answer

The density of copper can be calculated using the formula: Density = (Z * M) / (N_A * V_cell), where Z is the number of atoms per unit cell (4 for FCC), M is the molar mass of copper (63.55 g/mol), N_A is Avogadro's number (6.022 x 10^23 atoms/mol), and V_cell is the volume of the unit cell in cm^3 (4.11 x 10^-23 cm^3). This calculation gives approximately 10.3 g/cm^3.

Metallic Copper Crystallizes in a Face-Centered Cubic Lattice