The reaction below is at equilibrium. Before the reaction began, the concentrations of the reactants were 0.060 M of SO2 and 0.050 M O2. After the equilibrium is reached, the concentration of SO3 is 0.040 M. What is the value of K? 2 SO2(g) + O2(g) <===> 2 SO3(g)
a) 2.7 b) 130 c) 0.0075 d) 0.38 e) 8.9