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Moles

Moles. pp 129-133. NOT!. Star-Nosed Mole. Amadeo Avogadro. Created the “counting unit” for atoms. Avogadro’s Number 6.022x10 23 1mol = 6.022x10 23. Moles Measure Elements. 1mol Carbon-12 = 6.022x10 23 atoms of Carbon-12 1 mol Carbon-12 = 12.000000g 1 mol Carbon-14 = 14.000000g

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Moles

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  1. Moles pp 129-133

  2. NOT! Star-Nosed Mole

  3. Amadeo Avogadro • Created the “counting unit” for atoms. • Avogadro’s Number • 6.022x1023 • 1mol = 6.022x1023

  4. Moles Measure Elements • 1mol Carbon-12 = 6.022x1023atoms of Carbon-12 • 1 mol Carbon-12 = 12.000000g • 1 mol Carbon-14 = 14.000000g • 1 mol C (in nature) = 12.0107g • Why?

  5. More Moles • 1 mol Li = 6.941g = 6.022x1023atoms Li • 1 mol N = 14.00674g = 6.022x1023 atoms Li • How many grams of Na in 1 mol Na? • How many atoms of Hydrogen in 1.00794g H ?

  6. Conversion • How many atoms of Mg in 13g of Mg ?

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