Chapter 20: Problem 13
The chemical formula for copper ferrite may be written as \(\left(\mathrm{CuFe}_{2} \mathrm{O}_{4}\right)_{8}\) because there are eight formula units per unit cell. If this material has a saturation magnetization of \(1.35 \times\) \(10^{5} \mathrm{A} / \mathrm{m}\) and a density of \(5.40 \mathrm{g} / \mathrm{cm}^{3},\) estimate the number of Bohr magnetons associated with each \(\mathrm{Cu}^{2+}\) ion.