During the experiment, I will measure the of each curcumin extract to determine the unknown of curcumin in each sample. Since I will probably have to dilute the samples prior to taking measurements, I will record the initial and final of each solution so that I can use it to calculate the . After collecting data, I will use my plotted and to convert absorbance to . To find the original concentration in my extract, I will need to take into account the .