At a certain temperature, the equilibrium constant for the chemical reaction shown is 7.14 x 10?³. At equilibrium, the concentration of AB is 3.125 M, the concentration of BC is 2.525 M, and the concentration of AC is 0.270 M. Calculate the concentration of B at equilibrium.
AB(aq) + BC(aq) \rightleftharpoons AC(aq) + 2B(aq)
[B] = M