1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^3

The solid xy decomposes into gaseous x and y: xy(s) m x(g) + y(g) kp = 4.1 (at 0 °c) if the reaction is carried out in a 22.4 l container, which initial amounts of x and y will result in the formation of solid xy?