Some Reactions of Carbon Dioxide—Microscale Chemistry

This Some Reactions of Carbon Dioxide—Microscale Chemistry activity & project also includes:

Precipitation reactions are always interesting. How about one that forms a precipitate using a gas? Chemists of any age will enjoy this twist on a standard solubility lab. Partners observe the lack of interaction between sodium hydroxide and barium nitrate, then produce carbon dioxide in the solution to see the formation of an insoluble salt.

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CCSS: Adaptable
NGSS: Adaptable
Instructional Ideas

  • Use the experiment to illustrate precipitation reactions and insoluble salts
  • Ask pupils to predict what will happen when they add hydrochloric acid to the marble chips
Classroom Considerations

  • Be sure that each working group has copies of the activity series and solubility rules to use as they work
  • Substitute limestone if you do not have the marble chips called for in the procedure
Pros

  • Reaction is easy to perform and clean up
  • The teacher's guide contains solution prep directions and printable materials
Cons

  • The title is somewhat misleading, as the included materials only show one reaction
Common Core

NGSS