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Published byRebecca Young Modified over 8 years ago
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A mole is a counting unit similar to a dozen. A dozen is associated with the number 12 while a mole is associated with the number 6.02 x 10 23 6.02 x 10 23 is also know as Avagadro’s number after the scientist Why would scientists use such a large number? What is a mole?
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Avagadro’s number is used to convert between moles and particles. 1 mole = 6.02 x 10 23 particles Particles can be atoms, ions, or molecules Avagadro’s Number
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Just like using molar mass to convert back and forth between moles and grams we can use Avagadro’s number as a conversion unit to convert between moles and particles. When going from moles to particles use: When going from particles to moles use: Conversion Units
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Convert 8.23 moles of NaCl to molecules Example
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2.98 x 10 25 atoms of Silver are equal to how many moles of Silver? Example
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Another mole conversion unit that can be used in chemistry is 1 mole=22.4 Liters of a gas This can be used to go back and forth between moles and liters of a gas When going from moles to liters use: When going from liters to moles use: Conversion Unit
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23 moles of chlorine gas has a volume of how many liters? Example
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98 Liters of Hydrogen gas is exactly how many moles? Example
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Moles Mole Map Liters GramsParticles
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