Good News & Bad News About Chemistry, Plus Counting Without Counting 07-Mole/Mole.htm
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Transcript of Good News & Bad News About Chemistry, Plus Counting Without Counting 07-Mole/Mole.htm
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“Good News & Bad News About Chemistry, Plus Counting Without Counting”
• http://www.chemistryland.com/CHM130W/07-Mole/Mole.htm
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The Mole
The Mole - a unit used to count small particles such as atoms
• Important Facts: The standard for the mole is the number of atoms in 12 grams of Carbon-12
• This number is 6.023 x1023 and is known as Avogadro’s number
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Avogadro
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Avogadro’s Number…Give him a call(How to lose a date in 3 seconds)
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1 Mole is 602,300,000,000,000,000,000,000
of something
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Units For Counting
Dozen =
Ream =
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How Many…
1. A dozen eggs is _____ eggs.
2. A dozen elephants is _____ elephants.
3. A dozen cars is _____ cars.
4. A dozen flying monkeys is _____ flying monkeys
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How Many…1. A mole of eggs is _____ eggs.
2. A mole of elephants is _____ elephants.
3. A mole of cars is _____ cars.
4. A mole of flying monkeys is _____ flying monkeys
5. A mole of atoms is _______ atoms.
6. A mole of molecules is ________ molecules.
7. A mole of dollar bills is ________ dollar bills.
8. A mole of particles is ________ particles.
9. A mole of anything is ___________.
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The number is the same but is the mass?
• Is the mass of a dozen eggs the same as the mass of a dozen elephants?
• Is mass of a mole of carbon atoms the same as the mass of a mole of hydrogen atoms?
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Proof That Chemists Have No Life
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Avocado’s Number?
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That’s not avocado’s number
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The Elusive “Guacamol”
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A “Guacamol” Party
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Useful Conversions Factors
1 mole = 6.022 x 1023 particles
1 mole = gfm (molar mass)
1 mole = 22.4 Liters (@STP)
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