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30 March, 22:29

He generic metal a forms an insoluble salt ab (s) and a complex ac5 (aq). the equilibrium concentrations in a solution of ac5 were found to be [a] = 0.100 m, [c] = 0.0380 m, and [ac5] = 0.100 m. determine the formation constant, kf, of ac5.

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  1. 30 March, 23:14
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    Balanced chemical reaction: A + 5C ⇄ AC₅.

    [A] = 0.100 M; equilibrium concentration.

    [C] = 0.0380 M.

    [AC₅] = 0.100 M.

    Kf = [AC₅] / ([A] · [C]⁵).

    Kf = 0.100 M : (0.100 M · (0.0380 M) ⁵.

    Kf = 12620658.54 = 1,26·10⁷.

    The formation constant can be calculated when chemical equilibrium is reached, when the forward reaction rate is equal to the reverse reaction rate.
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