CHAPTER 10 THE MOLE. Time for the math part of chemistry!
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Transcript of CHAPTER 10 THE MOLE. Time for the math part of chemistry!
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CHAPTER 10
THEMOLE
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Time for the math part of chemistry!
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To use chemistry in real-life…you need numbers!
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What is a “dozen?”
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602,000,000,000,000,000,000,000
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Which weighs more a kilogram of feathers, or a kilogram of bowling balls?
Which weighs more a mole of feathers, or a mole of bowling balls?
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How big is a MOLE OF MARBLES?
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North Building Lobby
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Baltimore City
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The tallest mountain in the Rockies
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What is the purpose of having this huge number?
and why this particular number?
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You want to buy oranges….
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You can buy them individually, e.g., by the dozen…
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Lab Procedure:1. Weigh out a molecule of water
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REVIEW: What is an atomic mass unit?(an AMU)
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How much does a molecule of water weigh?
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1.00 atomic mass unit = 1.6605 x 10-24 grams
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Our best balance at Bryn Mawr weighs to 0.001 grams
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Time for Dimensional Analysis!
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You can buy them by the pound…
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