3.3 The Molar Volume
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Transcript of 3.3 The Molar Volume
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3.3 The Molar Volume
PAGES 132- 141
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Gay Lussas and Amadeo Avogadro found out that equal volumes of different gases , measured at the same temperature and pressure have equal number
of particles
MOLAR VOLUME
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Temperature: 273.15K or 0ºC
Pressure: 101.3kPa or 1 atm
Standard Temperature and Pressure
(STP)
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Volume occupied by one mole of the gas at STP
MOLAR VOLUME
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Volume occupied by one mole of any gas at STP
MOLAR VOLUME
Volume occupied by 6.02 x 1023 particles of any gas at STP
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OR in other words,
1 mol of any gas at STP has a volume of 22.4 L
The volume of 1 mol of any gas at STP is 22.4 L
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Volume occupied by one mole of any gas at STP
MOLAR VOLUME
It only applies to:Gases
Only at STP
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Two – step conversion:
1. Volume of Ne to mol of Ne
2. Mol of Ne to Number of atoms of Ne
21
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Two – step conversion:1. Volume of CH4 to mol of
CH4
2. Mol of CH4 to grams of CH4 2
1
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What volume of CO2 at STP contains 0.20g of C?
CO2
C
1. Grams of C to mol of C
2. Mol of C to mol of CO2
3. Mol of CO2 to litres of CO2
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Density = amount of matter in a given volume
MOLAR VOLUME and DENSITY
USING UNITS FOR MOLAR VOLUME AND MOLAR MASS,TRY TO COME UP WITH A FORMULA THAT RELATES
THEM TO DENSITY
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Density = amount of matter in a given volume
MOLAR VOLUME and DENSITY
USING UNITS FOR MOLAR VOLUME AND MOLAR MASS,TRY TO COME UP WITH A FORMULA THAT RELATES
THEM TO DENSITY
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3.4 Review Problems (page 140 – 141): all even
3.4 QUIZ, Wednesday, April 16
Classwork/Homework
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