Hello!! I'm doing a chemistry assessment (aka chem IA for the IB program) that requires me to research a question of my choice. I decided to find out the rate law between blueberry dye (anthocyanin) and bleach. Currently, I am done with data collection.
I first found out that the blueberry solution has three peaks at three wavelengths. I used these wavelengths to measured the change in absorbance over time as I inserted bleach into the dye.
To find the rate law, I wanted to look at the initial rates at different concentrations. My data, however, is very messy. Thus, when I compare the values, I think bleach is zero order and blueberry solution is second order. But when I graphed my data using the integrated rate law, I did not get a straight line.
I am not sure what to do now. Is my research invalid? what more can I do to verify the rate law? Also, due to lack of time, I could not separate the the solution into different anthocyanins. Could this be a huge problem?
Lastly, what could be the reaction equation between anthocyanin and sodium hypochlorite? and how do I explain the mechanism(?) or the scientific idea behind this reaction?
Sorry for asking so much.. Thank you!!