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Mole-o-rama

Mole-o-rama. Chapter 3.4. Objectives. Why did you have to have 602 beans in your mole? Weighing to count What is a mole?. Count. Option 1: Count 602 beans Option 2: Say you counted Option 3: Mass a bean Multiply by 602 Collect that mass of beans!. Even better…. Beans are different…

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Mole-o-rama

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  1. Mole-o-rama Chapter 3.4

  2. Objectives • Why did you have to have 602 beans in your mole? • Weighing to count • What is a mole?

  3. Count • Option 1: Count 602 beans • Option 2: Say you counted • Option 3: Mass a bean • Multiply by 602 • Collect that mass of beans!

  4. Even better… • Beans are different… • Use average value • Mass 10 beans … • Divide by 10 = average

  5. More beans… 6.0 g 8.0 g 5.0 g 4.0 g 5.0 g A B C D E Average bean here is 5.6 g 602 bean B = 4800 grams 602 bean D = 2400 grams 602 average = 3400 grams

  6. Use averages!! Periodic Table Isotope Isotope • Average Atomic Mass: • Average mass of all atoms of an element • Found on periodic tables everywhere

  7. http://www.chem.wisc.edu/areas/reich/handouts/periodic-table.GIFhttp://www.chem.wisc.edu/areas/reich/handouts/periodic-table.GIF

  8. http://img.photobucket.com/albums/v623/johnnysilver/etc/chineseperiodictable.gifhttp://img.photobucket.com/albums/v623/johnnysilver/etc/chineseperiodictable.gif

  9. What is the average? 36 35 Cl 37 Cl

  10. What is the average? 35.6 35 Cl 35 Cl 37 Cl

  11. What is the average? 35.5 35 Cl 35 Cl 35 Cl 37 Cl

  12. Use averages!! Periodic Table Isotope Isotope 35.45 is the average atomic mass of Cl

  13. Back to the beans… • If we had a dozen beans… what would they weigh? 12 beans 5.6 g 1 bean = 67 grams

  14. Back to the beans… • If we had a dozen bean burritos*… what would they weigh? 12 burritos 440 g 1 burrito = 5280 grams *Bean burrito is not pictured due to boring-ness … this is the Baja Fresh Baja Burrito… http://www.bajafresh.com/burritos.php

  15. Molé Tasty sauce for burritos, etc. http://www.lasanitas.com/ourmenu/images/apic7big.jpg

  16. Mole http://www.cohenufo.org/Images.GIF/Mole.jpg

  17. Mole • Aside from being a small rodent and fun project… http://mrskingsbioweb.com/moleday.JPG http://snigglezone.com/images/mole1.jpg

  18. Avogadro’s Number … the Mole! • The Mole is a counting number • Chemist’s Dozen 6.02 x 10 23 things

  19. If we had a mole of beans… • It would have the mass of 3 billion billion CVN 76’s

  20. By the way • Enough aircraft carriers (which are about 3 ½ football fields long) to reach the sun and back almost 4 BILLION times

  21. Why do we need the mole? • This paperclip is 1.18 g • 23 of them have 1 mole of Al atoms 6.02 x 10 23 atoms

  22. Next time… The name is Mole. James Mole. http://k9zw.files.wordpress.com/2007/10/moles_are_forever.jpg

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