moles and molar mass

moles and molar mass - Chapter 5 5.5 The Mole 5.6 Molar...

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1 Chapter 5 5.5 The Mole 5.6 Molar Mass 5.7 Mole Relationships in Chemical Equations 5.8 Mass Calculations for Reactions
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2 1 trio = 3 singers 1 six-pack Cola = 6 cans Cola drink 1 dozen donuts = 12 donuts 1 gross of pencils = 144 pencils Collection Terms
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3 Contains 6.02 x 10 23 particles 1 mole C = 6.02 x 10 23 C atoms 1 mole H 2 O = 6.02 x 10 23 H 2 O molecules 1 mole NaCl = 6.02 x 10 23 Na + ions and 6.02 x 10 23 Cl ions A Moles of Particles
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4 Moles of elements 1 mole Mg = 6.02 x 10 23 Mg atoms 1 mole Au = 6.02 x 10 23 Au atoms Moles of compounds 1 mole NH 3 = 6.02 x 10 23 NH 3 molecules 1 mole C 9 H 8 O 4 = 6.02 x 10 23 aspirin molecules Examples of Moles
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5 6.02 x 10 23 particles 1 mole or 1 mole 6.02 x 10 23 particles Avogadro’s Number
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6 Suppose we invented a new collection unit called a mep. One mep contains 8 objects. A. How many paper clips in 1 mep? 1) 1 2) 4 3) 8 B. How many oranges in 2.0 meps? 1) 4 2) 8 3) 16 C. How many meps contain 40 gummy bears? 1) 5 2) 10 3) 20 Learning Check
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Suppose we invented a new collection unit called a mep. One mep contains 8 objects. A. How many paper clips in 1 mep?
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This note was uploaded on 11/09/2011 for the course CHEM 100 taught by Professor Sdfsdf during the Winter '08 term at BYU.

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moles and molar mass - Chapter 5 5.5 The Mole 5.6 Molar...

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