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    Does anyone know of a rates reaction that can be done in a school lab that can be used to get data to plot the graph to calculate activation energy for a reaction with a published value for Ea?
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    (Original post by Pigster)
    Does anyone know of a rates reaction that can be done in a school lab that can be used to get data to plot the graph to calculate activation energy for a reaction with a published value for Ea?
    Reacting HCl with Sodium Carbonate -- changing the concentration of HCl through dilutions and measuring the time it takes for the precipitate to dissolve. Then use your table of results to draw up a concentration/time graph with time in 1/t. Then draw a triangle to find gradient and complete the calculation of:
    m(gradient) x -8.314 = Ea.

    I'm rusty in experiments but I think this should be fine...
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    (Original post by Pigster)
    Does anyone know of a rates reaction that can be done in a school lab that can be used to get data to plot the graph to calculate activation energy for a reaction with a published value for Ea?
    Decomposition of hydrogen peroxide is probably the easiest.
 
 
 
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