For the reaction N2(g) + 3H2(g) → 2NH3(g), the equilibrium constant Kc at a certain temperature is 1.5. If the concentration of N2 is 0.5 M, H2 is 1.0 M, and NH3 is 0.2 M, what is the reaction quotient Qc?
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Remember that \( Q_c \) can be calculated in the same way as the equilibrium constant, using the concentrations of the reactants and products at any point during the reaction.