In this exercise you are asked to determine the rate constant k of a first order reaction. To this aim you measure the generation of the product at various time points, using a spectrophotometer.
Start the reaction by clicking on the "Start"-button. At convenient time intervals (for example every 3 seconds) write down the corresponding absorbance. Do so until you have recorded at least 6 measurements. When you have finished, stop timer and reaction by clicking on the 'Stop'-button.
Determine the rate constant k from your measurements using appropriate methods.