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The Mole

The Mole. Types of Chemical Reactions. What is a dozen ?. A dozen is 12. Why do you think a dozen is useful?. A dozen allow us to count and handle (ship, pay for, etc.) large amounts of stuff easier. The Mole - Demonstration. 30. 65.39. 26.982. 13. 55.847. 26. 29. 63.546.

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The Mole

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  1. The Mole

  2. Types of Chemical Reactions What is a dozen? A dozen is 12 Why do you think a dozen is useful? A dozen allow us to count and handle (ship, pay for, etc.) large amounts of stuff easier

  3. The Mole - Demonstration 30 65.39 26.982 13 55.847 26 29 63.546 1+1+16=18

  4. Types of Chemical Reactions If I had 2 moles of iron and 2 moles of aluminum, would they have the same mass? Would they have the same volume? No No From this demonstration, what pattern do you notice in the table? The mass number (amu) and mass of 1 mole of element (g) are almost the same

  5. The Mole Mole – anything that contains 6.022 x 1023 particles (atoms, molecules, ions) Abbreviation: mol Avogadro’s Number = 6.022 x 1023 The mass of one mole of any element = Mass number

  6. Example 1) How many particles are in 2mol of Al?

  7. Example 1) How many grams are in 2 mol of Al?

  8. Example 2) How many particles are in 3.5mol of Fe?

  9. Example 2) How many grams are in 3.5 mol of Fe?

  10. Example 3) How many moles of Pb do 6.022 x 1021 particles of Pb represent?

  11. Practice Work on Group Practice #1-3 Then, work on Individual Practice #1-6

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