Uploaded April 2017 | Updated September 2026, 2 weeks ago
Crystal Violet is reacted with sodium hydroxide. The change in color is tracked with a Vernier Spectrovis Plus. The absorbance is used to determine the order with respect to crystal violet. A second reaction is run with double the concentration of sodium hydroxide to show the order of hydroxide. Prior to running a Beer's Law calibration curve is constructed so that the absorbance values can be converted into concentrations. The rate order and rate constant can be found with some manipulations, some of which can be done with the Vernier Labquest 2.
Crystal Violet is reacted with sodium hydroxide. The change in color is tracked with a Vernier Spectrovis Plus. The absorbance is used to determine the order with respect to crystal violet. A second reaction is run with double the concentration of sodium hydroxide to show the order of hydroxide. Prior to running a Beer's Law calibration curve is constructed so that the absorbance values can be converted into concentrations. The rate order and rate constant can be found with some manipulations, some of which can be done with the Vernier Labquest 2.
