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    Hello, I have to suggest a rate equation for the decomposition of sodium thiosulphate without a catalyst.
    Could I have some help?
    Is it simply
    R=k[Na2S2O3]
    Seems too easy
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    Bump
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    i would've written that too but i'm getting Ds in chemistry so don't trust me

    bumping 4 ya
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    Super bump
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    How is it decomposing? If the only thing in the reaction is thiosulfate then that is the only thing that can be in the rate equation. If you mix the thiosulfate with anothe reactant, the likelyhood is it's a second order reaction which depends on the concentrations of both reactants.
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    Hey, the only reactant is sodium thiosulphate, so...
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    It may also be zero order. If you think about it, if the concentration of thiosulfate is higher, that doesn't necessarily mean it will decompose faster.
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    I'm trying to find any evidence online that shows Na2S2O3 decomposes on its own. I can't find anything other than acid-catalysed reactions.
    Eurgh, thanks for your help though.
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    What data do you have? They must have given you some data with concentrations/rates?
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    They really didn't. We did the experiment re: Na2S2O3 +HCl calculated order of reaction with respect to sodium thiosulphate. The had to write a rate equation for it.
    The next question is:
    Sodium Thiosulphate decomposes on its own, if this is the case write a rate equation for this reaction.
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    When you did the rate equation for thiosulfate + HCl was the reaction first order with respect to each reactant? If so then it'll still be first order with only thiosulfate.
 
 
 
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