There is no given data table but based on the question, the reaction is xy <=> x + y If we let M as the initial concentration of xy and c as the in the concentration after the dissociation, then we can use the ICE method xy <=> x + y I M C -c c c ----------------------------- E M-c c c
Solve for c using Kc = c(c) / (M - c) And the concentration of the xy, x, and y can then be determined