The height of a unit cell in an HCP structure was given as 5.2368Å. Determine the edge length in a unit cell.

Nickel crystallizes in a face-centered cubic lattice. If the density of the metal is 8.908 g.cm3 and its atomic weight is 58.6934 g/mole, what is the mass of an atom of Ni? Volume in cell? Edge length? And radius?

1.Indium has a tetragonal unit cell for which the a and c lattice parameters are 0.459 and 0.495 nm, respectively. (a) If the atomic packing factor and atomic radius are 0.693 and 0.1625 nm, respectively, determine the number of atoms in each unit cell. (b) The atomic weight of indium is 114.82 g/mol; compute its theoretical density.

The density of totally crystalline nylon 6,6 at room temperature is 1.213 g/cm3. Also, at room temperature the unit cell for this material is triclinic with lattice parameters: a = 0.497 nm a = 48.4° B = 76.6° y = 62.5° b = 0.547 nm c = 1.729 nm If the volume of a triclinic unit cell, Vtri, is a function of these lattice parameters as Vui = abc1 – cos? a – cos? B – cos? y + 2 cos a cos B cos y determine the number of repeat units per unit cell. Click on the link to access Table 14.3. Atomic weights for several elements are included in the following table: 12.01 g/mol Chlorine 35.45 g/mol Carbon Fluorine 19.00 g/mol Hydrogen 1.008 g/mol Oxygen 16.00 g/mol Nitrogen 14.01 g/mol