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Chemistry Salters B Investigation: Iodine Clock rate constant, k Watch

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    Hi,I've been doing the Iodine-Clock Reaction for my investigation, using Potassium Iodide, Sodium Thiosulphate and persuklfate, I know the order of the reaction is rate=k[I-][S2O82-] , so they're both first order.

    But how do I find the rate constant k?

    I kept the conc of one substance constant for one experiment, then changed the other and vice versa, I have all the times/rates I just have no clue how to do it.

    Thanks,

    Ben Ingham
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    (Original post by Ben Ingham)
    Hi,I've been doing the Iodine-Clock Reaction for my investigation, using Potassium Iodide, Sodium Thiosulphate and persuklfate, I know the order of the reaction is rate=k[I-][S2O82-] , so they're both first order.

    But how do I find the rate constant k?

    I kept the conc of one substance constant for one experiment, then changed the other and vice versa, I have all the times/rates I just have no clue how to do it.

    Thanks,

    Ben Ingham
    Hi I'd advise posting a thread in the Chemistry Forum you're more likely to get a response. Welcome to TSR by the way :tsr:
 
 
 
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