When starting the experiment, you and your partner are heating your flask in a 5

Question

When starting the experiment, you and your partner are heating your flask in a 50 ºC water bath. You have waited about 5 minutes and feel like it's at the correct temperature. You remove the flask and add a whole Alka Seltzer tablet. You look in the flask to make sure that it is reacting, using about 30 sec of your time, and then a baloon to the top. You record the time from that point, pinch off the baloon and tie it.

Choose the options that best describes way to correct incorrect actions in this scenerio.

1.Add baloon immediately to the top of the flask to capure as much as the gas as possible. 2.Keep flask in the water bath while the Alka Seltzer tablet is added. 3.Measure the temperature of the water inside the flask to determine if it has reached the correct temperature. 4.Measure 20 seconds from adding the baloon, pinch, twist and tie off balloon for measuring volume. 5.Wait 10-15 minutes for the temparature to reach the desired value. 6.Break the Alka Seltzer tablet into pieces before adding to the flask. 7.Ten seconds after the baloon as been added, pinch, twist and tie off the baloon for volume measurement. 8.Heat all flasks to 100 ºC to determine the reaction rate. 9.Begin timing as soon as the baloon is added to the top of the flask.

Explanation / Answer

In the bove experiment with alka seltzer tablet in hot water

The following can be done to correct the incorrect actions done in the experiment.

1. Add balloon immediately on top to capture as much CO2 as possible.

7. 10 seconds from adding the balloon, pinch. twist and tie off balloon for measuring volume.

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