+ tuesday, 10/14 get out page 36 to turn in! lab, page 37 with post-lab questions due friday. psat ...
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Avogadro’s Number and the Mole Holy Moley! I love moles!TRANSCRIPT
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+Tuesday, 10/14
Get out page 36 to turn in!Lab, page 37 with post-lab questions
due Friday.PSAT & Movie tomorrow!!!Label “Mole Calculations” as page 40Label “Mole Project” as page 41
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+Page 39Topic: MOLE CONVERSIONSObj: Define the concept of a mole and use moles to calculate atoms.
ESQ: How is a mole used as a measurement in chemistry?
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Avogadro’s Number and the
Mole
Holy Moley! I love moles!
![Page 4: + Tuesday, 10/14 Get out page 36 to turn in! Lab, page 37 with post-lab questions due Friday. PSAT Movie tomorrow!!! Label Mole Calculations as page](https://reader034.vdocuments.site/reader034/viewer/2022052607/5a4d1b697f8b9ab0599b2909/html5/thumbnails/4.jpg)
+
Avogadro’s Number and the Mole!!!
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+Avogadro’s number
The number of atoms in 12.00 grams of carbon-12
6.02 x 1023 objects or particles in one mole
(602 000 000 000 000 000 000 000)
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+Just like in the activity you just did:
One mole is an amount of substanceOne dozen = 12 objectsOne ream = 500 objectsOne pair = 2 objectsOne mole = 6.02 x 1023 objects
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+What day do you think Mole day is???October 23!! (1023)And what time do you think it starts and ends???
6:02 am to 6:02 pmProject guidelines given out next week. Make me laugh!
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+Mole
The mole is central to science – it lets you determine how many molecules you have by weighting them
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+Molar Mass
The mass (in g units!) of one mole of a pure substance
We can use it as a conversion factor
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+Mole
Lithium:atomic mass = 6.941 amu6.941 g in one mole6.941 g/mole
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+Mole
Mercury: Atomic mass = 200.59 amu
200.59 g in one mole200.59 g/mole
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+Conversion Factors – KNOW THIS!
1 mole = 6.02 x 1023 representative particles aka atoms/molecules = 22.4 L of gas = molar mass (in grams)
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+MOLAR ROAD MAPdraw this in your spiral
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+Example 1
How many PARTICLES are there in 3.55 moles of rubidium?
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+Example 2
How many moles in 24.0 grams of carbon?
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+Diatomic molecules – go everywhere as a pair
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+Example 3
How many atoms are in 3.65 g of chlorine?
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+Example 4
How many liters are in 5.500 x 1025 molecules of hydrogen (H2) gas?