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eBook
CK-12 Foundation

Ck 12: Chemistry for High School

For Students 9th - 10th
This digital textbook covers core chemistry concepts and includes interactive features, real-world examples, and videos.
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Lesson Plan
Science Education Resource Center at Carleton College

Serc: Mn Step: Stoichiometry: Introduction to Stoichiometry

For Teachers 9th - 10th
Using the example of a cake recipe, students find the ratios between different ingredients, which introduces the concept of mole ratios. They then calculate the mole ratios in a chemical equation, and learn how this applies to...
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PPT
Frostburg State University

Frostburg State University: Experimental Yield

For Students 9th - 10th
Part of a slide show from Frostburg State University showing the concept of experimental yield. Gives reasons for two yields.
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Online Course
Khan Academy

Khan Academy: Molarity vs.osmolarity

For Students 9th - 10th
Molarity and osmolarity are two distinct concepts. Molarity (M) is the number of moles of solute per liter of solution. The unit of molarity is the mole (mol). Osmolarity (Osm/L) is the total concentration of all solutes in the solution....

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