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Unformatted text preview: order to reach equilibrium. Calculated the same way as K, just with initial, not equilibrium concentrations. o Q = K at equilibrium o Q > K needs to proceed to reactants o Q < K needs to proceed to products Steps for Solving Equilibrium Problems o Write the balance equation o Write the equilibrium expression using the law of mass action o List the initial concentrations o Calculate Q and determine the direction the reaction must proceed to reach equilibrium o Define the change and equilibrium concentrations o Substitute the equilibrium concentrations into the equilibrium expression and solve for the unknown o Check you calculated equilibrium concentrations by making sure they give the correct value of K...
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