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Chapter 4 Lecture - Chapter 4 Chemical Composition...

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Chemical Composition Chapter 4
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Questions for consideration 1. How can we count the number of atoms in a sample of a material? The number of molecules? The number of formula units? 2. How can we know the number of molecules in a sample of a material? 3. How can we use the masses of elements in a compound to determine its chemical formula? 4. How can we express the composition of a solution?
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Math tools used 1. Scientific notation 2. Units and conversions
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