How to Measure the Loss in a Reaction

How do you measure when a gas is lost? The 20th installment in a 29-part series explains how to determine if a gas has been lost in a chemical reaction. It continues by describing how to solve for the lost mass. Finally, it offers a challenge in applying the knowledge to a reaction they could perform in the laboratory.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Verify all pupils write down the formula since it is only mentioned once
  • After mastering the skills on the video, have students perform a lab that demonstrates the same concept
Classroom Considerations
  • Ensure scholars have easy access to periodic tables they can read
Pros
  • Provides a cue to pause the video and think about answers before continuing
  • Includes ideas for what went wrong if your theoretical result and your actual result are not close
Cons
  • None
Common Core