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29 August, 19:47

If a reaction mixture is initially 0.35 m in x, what is the concentration of x after 190 seconds? if a reaction mixture is initially 0.35 in, what is the concentration of after 190 seconds? 0.00 m 0.11 m 0.34 m 0.21 m

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  1. 29 August, 20:45
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    According to the second-order rate constant formula:

    K t = 1/[At] - 1/[Ao]

    when k is the rate constant = 0.035 (given missing in your question)

    and t is the time = 190 sec

    Ao is the initial concentration of X = 0.35 m

    by substitution:

    0.035 * 190 sec = 1/[At] - 1/0.35

    ∴ [At] = 0.11 m

    ∴ the concentration after 190 sec = 0.11 m
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