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    As i used a colorimeter to complete my chemistry rates of reaction coursework, I first had to do a calibration graph, which is all good and fine. I did it, found out what concentration of stuff would be best to use in order to use the whole range of the colrimeter etc.. now i'm writing it up, what exactly can i say about it apart from I got a near enough perfect straight line for the graph, and what conc. is beast to use? What can I say about the graph being almost a perfect positive correlation? I need something to say about the actual graph as I've already written about concentrations etc..

    use a correlation test to support the data.

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