3. A mixture of 1.37 g of H2 and 70.3 g of Br2 is heated in a 2 liter tank at 973 K The following reaction occurred H,(g) + Br, (g) 2HBr(g) t equilibrium the tank is found to contain .57 g of H A) Calculate the equilibriun concentrations of Ha, Br, and HBr. B) Calculate K, and Kp. (8pts.)