Question

To determine the relationship between absorbance versus concentration of crystal violet, a Beer’s law calibration curve of absorbance versus concentration of crystal violet, [CV+], was prepared in the pre-lab exercise for investigation 9. Linear regression analysis of the calibration curve data yielded the equation: Absorbance = 48983 x M + 0.00148. During the investigation, the absorbance of a crystal violet solution in the presence of hydroxide ions was monitored at 565 nm until a value of 0.2