please help, unsire how to solve and go about this question

5) (45 points total) Using VESTA for inspecting group II salts. Use equation 4.4, section 4.14 (Kapustinskii's equation) to calculate the lattice energy for barium selenate and barium perchlorate; please show your work-write on a separate piece of paper and photedecument. Use VESTA and provided cif files to determine the radius of perchlorate and selenate anions (can use the ClO and SeO distances as an estimate). Radius of barium divalent ion can be found in many places; i.e. Table 12.1. Reminder: N= number of ions in formula unit, and z+and zare the charges on the cation and anion respectively. ** disclaimer** numbers you calculate are not necessarily correct and will disagree with other values you will find online, etc. a. (15 points) Calculate the lattice energies (show work, see above)-which is larger, and discuss this in terms of the variables in the calculation, and which variable(s) affect the calculated lattice energies most?| b. (15 points) With the help of the bond distance tool in VESTA, fill the table for Ba-O bond distances in each salt. c. (5 points) Which has shorter Ba-O bonds, and why do you think this is the case? d. (10 points) Ba(ClO4)2 has a reported solubility of 66g/100ml. BaSeO4 has a reported solubility of 0.0052g/100ml. Rationalize this, discussing all the factors that affect solubility, and which (probably more than one) factor(s) is most important in this case (hint: discuss lattice energy, ionpairing vs. hydration spheres, you can use soft-hard arguments too)