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    Hey, I am doing the iodine clock experiment and am having trouble finding the rates of reaction involved. So, for example I varied the concentration of potassium iodide and measured the time taken for the black colour to form.

    From here would I plot a graph of conc. v time then draw tangents at each data point to find the gradient (rate)? Or say plot a graph of concentration v. 1/time?

    If so could somebody please tell me whether or not it is possible to do on excel and if not how would I convert my results of time into rates.

    thanks
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    Ew Chemistry
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    Plot a graph of the concentration against time and take the gradient of the tangent. You can then see what the rate of the reaction is at certain times during the experiment by seeing what the gradient of the tangent to the curve would be at this time. I have no idea if its possible on excel sorry .
 
 
 
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