Final answer:
To write the balanced equation corresponding to the given equilibrium constant expression, the chemical equation is needed. The final concentrations can be calculated using the initial concentrations and changes in concentration. The answers can be checked by substituting the final concentrations into the equilibrium constant expression.
Step-by-step explanation:
The equilibrium constant expression for the reaction given is Keq = [A][B] / [C]. To write the balanced equation corresponding to this equilibrium constant expression, we need the chemical equation for the reaction. However, the equation is not provided in the question.
Once the chemical equation is known, we can balance it if necessary and write the equilibrium constant expression. For example, if the equation is 2A + 3B -> 4C, the equilibrium constant expression would be Keq = (C^4) / (A^2 * B^3).
In order to calculate the final concentrations of all species present, we need the initial concentrations and the changes in concentration for each species. These values are typically obtained from an ICE table.
For example, if the initial concentration of A is 0.1 M, the initial concentration of B is 0.2 M, and the initial concentration of C is 0.5 M, and the change in concentration for A is x, the change in concentration for B is 2x, and the change in concentration for C is 4x, the final concentrations would be [A] = 0.1 + x, [B] = 0.2 + 2x, and [C] = 0.5 + 4x.
To check the answers, we substitute the final concentrations into the equilibrium constant expression and compare the calculated value of K with the given value of K. If the calculated value of K matches the given value of K, it means that the answers are correct and the calculations are consistent with the equilibrium constant expression. If there is a mismatch, it indicates an error in the calculations or that the system is not at equilibrium.