Yttrium iron garnet crystal has a chemical formula of Y3Fe5O12, (or 3Y2O3 ⋅ 5Fe2O3) the five iron(III) ions occupy three tetrahedral (A sites) sites and two octahedral (B sites) and, with the yttrium(III) ions coordinated by eight oxygen ions in an irregular cube. The iron ions in the two coordination sites (A and B sites) are antiferromagnetically coupled. Assuming Fe3+ has an atomic moment of 5µB, calculate the magnetization of YIG and compare your results to the real magnetization of YIG.

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic