I\'m well aware I\'m making this more complicated than necessary:[ Will someone

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I'm well aware I'm making this more complicated than necessary:[ Will someone please explain? It is possible to predict the equilibrium constant of a reaction by combining two or more reactions for which the value of K is known. When combining equilibrium constants, it is important to note the following: When reactions are added, their K values are multiplied. When a reaction is reversed, its K value is inverted; that is, Kreverse = l/Kforward. When the coefficients of a reaction are multiplied by a factor, the K value is raised to the power of that factor. Determine the value of the equilibrium constant, Kgoal, for the reaction CO2(g) rightarrow C(s) + O2(g), Kgoal = ? by making use of the following information: 2CO2(g) + 2H2O(l) rightarrow CH3COOH(l) + 2O2(g), K1 = 5.40 times 10-16 2H2(g) + O2(g) rightarrow 2H2O(l), K2 = 1.06 times 1010 CH3COOH(l) rightarrow 2C(s) + 2H2(g) + O2(g), K3 = 2.68 times 10-9 Express your answer numerically. Determine the equilibrium constant. Kgoal, for the reaction 4PCl5(g) rightarrow P4(8) + 10Cl2(g), Kgoal = ? by making use of the following information: P4(s) + 6Cl2(g) rightarrow 4PCl3(g), K1 = 2.00 times 1019 PCl5(g) rightarrow PCl3(g) + Cl2(g), K2 = 1.13 times 10-2 Express your answer numerically.

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