Illustrated Guide to Home Chemistry Experiments

Chapter 13 Laboratory: Chemical Equilibrium and Le Chatelier’s Principle 233

to reduce the concentration of dissolved carbon dioxide
by liberating carbon dioxide gas. (You may want to do this
experiment outdoors to avoid making a mess indoors.) Let’s
test that hypothesis:

1. If you have not already done so, put on your splash
   goggles, gloves, and protective clothing.


2. Leaving it capped, shake the chilled sealed bottle of
   carbonated soft drink. (Agitating the sealed bottle mixes

OSERB vATIOnS
If you are not maintaining a lab notebook, record your observations narratively here.

prt I: a

part II:

part III:

part Iv:

small bubbles of the carbon dioxide gas in the “empty”

part of the bottle into the liquid, providing loci for the

dissolved carbon dioxide to come out of solution.)

3. Immediately after you give the carbonated soft drink
   bottle a thorough shaking, point the mouth in a safe
   direction and remove the cap.


4. Repeat steps 2 and 3 with the bottle of carbonated soft
   drink that’s at room temperature.


5. Clean up.