If the initial concentrations in the bag are [PL] = 0, [L]=0, [P]=4 and the surroundings are [PL]=0, [L] = 12 and [P] = 0, What is the Kd given that equiLiBrium of left is [PL] = 2, [L}=5, [P] = 2. and right is [PL]=0, [L]=5 and [P]=0?