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More than half of your body is made of water, but what percentage of you is made up of hydrogen? This video explains how to solve for percentage mass. It uses water as one example of solving for both hydrogen and oxygen.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Assign each class member a different molecule and have them calculate the percent mass of each atom
Classroom Considerations
- Assumes prior knowledge of moles, though it is not required
- Review pie graphs if you suspect pupils will be confused
- Lesson is the eighth in a 29-part series
Pros
- Provides a prompt to pause the video and think through a question before discovering the correct answer
- Brevity of video allows for it to be played again for struggling learners
Cons
- None