Answer to Question #203209 in Physical Chemistry for Siddharth mishra

Question

If a solid PQ have NaCl type structure is heated so that the ions along one body diagonal are lost and trivalent ions(R) enter interstitial sites to maintain the electrical neutrality so that the new empirical formula unit is P_xQ_yR_z(x,y,z are smallest possible integers). The values of x+y+z is [Q^- form the lattice]

Answer 1

$x+y+c=4+2−1=5$