Chemistry: Mole Calculations

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Khan Academy High School chemistry Lesson 2

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7 Terms

1
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Convert mass into moles

mass/ molar mass

2
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Convert moles into mass

moles x molar mass

3
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Finding out molar mass when mass and numbers of moles are known

mass/moles

4
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Converting mass into atoms

Mass/ molar mass x Avogadro’s number

5
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Calculating molecules from mass & equation of moles

Equation of moles/ mass x Avogadro’s number

6
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Finding out formula units when mass and molar mass is known

1) Convert grams to moles: mass/molar mass

2) Moles to formula units: moles x Avogadro’s number

7
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Finding out number of atoms of an element using mass and molar mass

Mass/ molar mass then multiply by Avogadro’s number