Measure the reaction times for solutions 2, 3 and 4 in the same manner. The reaction time for the first solution should be between 2 and 4 minutes. Record the time on the laboratory Data Sheet. Stop the timer when the solution turns blue. Watch the solution carefully for the sudden appearance of the blue iodine starch complex. Continue stirring until you are sure that all of the solution is thoroughly mixed. Do not worry about what is happening with the temperature column.
![previous pasco capstone previous pasco capstone](http://supernalmultimedia.weebly.com/uploads/1/2/3/7/123755716/163142872.jpg)
When half of the H.O, has drained out of the pipette, mouse click on the Start button. Then using a pipet add exactly 10.0 ml of HO, and stir continuous with a glass stirring rod or plastic coffee stirrer (or a magnetic stirrer with stirring bar if available). Transfer by pipette or graduated cylinder all of the reactants except for hydrogen peroxide (H2O2) into a 200 or 250-ml beaker. To see previous runs, or other runs, click at the run legend and select the run you wish to see The four reaction mixtures will be studied one at a time, starting with solution 1. You might like to add additional Time Displays by dragging with your mouse a Digit Display from the Displays Palette. Mouse click the Stop icon if you want to stop the timer. The Record icon converts into the Stop leon when the timer is running.
![previous pasco capstone previous pasco capstone](https://i.ytimg.com/vi/cQLkMY2E-O4/mqdefault.jpg)
![previous pasco capstone previous pasco capstone](https://ste.education/wp-content/uploads/2018/03/59560c93bdae2.jpg)
Press the Record icon if you want to start using the timer. Mouse click at the Select Measurements at one the Digit displays and select Time (s). The pressure sensor should be connected to the computer. From the Home Page select by mouse click the Two Digits Display. Enter the PASCO capstone by mouse clicking on the Capstone icon on the computer screen.
Previous pasco capstone software#
Transcribed image text: REACTION TIME MEASUREMENTS The PASCO Capstone software will be used as a timer in this particular experiment.