Zirconium has an HCP crystal structure, a density of 6.51g/cm3 and an atomic weight of 91.22g/mol. (a) What is the volume of the unit cell in cubic meters? (b) If the c/a ratio is 1.593, compute the values of c and a. Part 1 While there are many ways to solve this problem, one strategy is to calculate the volume of any metal's unit cell given its theoretical density (Equation 3.8) and atomic weight. What is the volume of the zirconium unit cell in cubic meters