For the CO2 impact experiment station: 1)         Obtain two plastic cups, red cabbage indicator, a straw, and plastic wrap. 2)         Fill each cup approximately one-quarter to one-third full of tap water and add ~10 mL of the red cabbage indicator. 3)         Place the two cups side by side on a sheet of white paper. 4)         Place the straw into one of the beakers and cover that beaker with the plastic wrap. 5)         Carefully blow bubbles into the test cup for 3 min. and observe both cups.  6)         Compare the color to the control cup and record any differences. This the Question:  Did the beaker with the solution into which CO2 was bubbled change pH/color?  By how much?  Is this what, you would predict, based on your knowledge of the chemistry of CO2?

EBK A SMALL SCALE APPROACH TO ORGANIC L
4th Edition
ISBN:9781305446021
Author:Lampman
Publisher:Lampman
Chapter1: Solubility
Section: Chapter Questions
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For the CO2 impact experiment station:

1)         Obtain two plastic cups, red cabbage indicator, a straw, and plastic wrap.

2)         Fill each cup approximately one-quarter to one-third full of tap water and add ~10 mL of the red cabbage indicator.

3)         Place the two cups side by side on a sheet of white paper.

4)         Place the straw into one of the beakers and cover that beaker with the plastic wrap.

5)         Carefully blow bubbles into the test cup for 3 min. and observe both cups. 

6)         Compare the color to the control cup and record any differences.

This the Question:  Did the beaker with the solution into which CO2 was bubbled change pH/color?  By how much?  Is this what, you would predict, based on your knowledge of the chemistry of CO2? 

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