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Using Conversion Factors

Using Conversion Factors. a mole also represents an amount of something. It is 6.02 x 10 of something. A mole can represent 6.02 x 10 donuts, iguanas, toes, etc. In chemistry , it is normally used to represent an amount of atoms, ions, molecules, or formula units.

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Using Conversion Factors

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  1. Using Conversion Factors

  2. a mole also represents an amount of something. It is 6.02 x 10 of something. A mole can represent 6.02 x 10 donuts, iguanas, toes, etc. In chemistry, it is normally used to represent an amount of atoms, ions, molecules, or formula units. Collectively, atoms, ions, molecules, or formula units are called representative particles. 23 23 Just like a dozen represents 12 of something, such as donuts, iguanas, chemistry assignments, etc.,

  3. Because chemists deal with such large amounts of particles, it is easier to work with moles of particles

  4. amounts of particles can be expressed not only as moles, but as mass (grams), as volume (liters), and as individual particles (atoms, molecules, ions, formula units, etc.)

  5. O H H a measurement of a sample of a molecule, H2O for example, can be converted from mass to moles to particles to volume and back again to any unit of measurement desired

  6. this is so cool!! using the right conversion factors

  7. 35 g Al

  8. 35 g Al ? moles Al

  9. 1 mol 35 g Al x 27 g

  10. 1 mol 35 g Al x 27 g 35 g Al x 1 mol 27g =

  11. = 1.3 mols Al 1 mol 35 g Al x 27 g 35 mol Al 27 =

  12. ? mass SiO2 0.8 moles SiO2

  13. ? mass SiO2 0.8 moles SiO2

  14. 60.1 g SiO2 1 mole SiO2 0.8 moles SiO2x = 0.8 x 60.1 g SiO2 = 48.1 g SiO2

  15. 200 g N2O ? molecules N2O

  16. 200 g N2O ? molecules N2O

  17. 23 1 mole N2O 6.02 x 10 molecules N2O 44.0 g N2O 1 mole N2O this is so cool!! 200 g N2O x x 23 200 x 6.02 x 10 molecules N2O 44.0 = 24 = 2.74 x 10 molecules N2O

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