Lecture_3.5--Introduction_to_the_Mole_and_Avogadros_Number

Lecture_3.5--Introduction_to_the_Mole_and_Avogadros_Number...

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1 THE MOLE Chapter 3 What is a MOLE? A cute, burrowing animal? An overgrowth of epidermal tissue? A spy? A TV show? It is all these things and more… Avogadro and the MOLE The Mole A mole of anything is 6.02214 x 10 23 of that thing. In Chemistry, we work with very smal particles, so we must work with a very large quantity of them. The mole is a convenient number to count a large quantity of particles. We can talk about a mole of anything, but we usually use it to talk about atoms, molecules, ions, and formula units Matter at the particle level. 6.02214 x 10 23 is also called Avogadro’s number .
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2 Mole / Dozen Analogy Like the mole, a dozen of something is a convenient way to talk about the number of items we tend to buy in those quantities: 1 dozen donuts = 12 donuts 3 dozen eggs = 36 eggs The mole and the dozen make it easier to talk about large quantities. The mole and counting particles
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This note was uploaded on 10/19/2011 for the course CHEM 230 taught by Professor Levi during the Spring '11 term at Skyline College.

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Lecture_3.5--Introduction_to_the_Mole_and_Avogadros_Number...

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