Using Conversion Factors
Using Conversion Factors
Jan 13, 2016
Using Conversion Factors. a mole also represents an amount of something. It is 6.02 x 10 of something. A mole can represent 6.02 x 10 donuts, iguanas, toes, etc. In chemistry , it is normally used to represent an amount of atoms, ions, molecules, or formula units. - PowerPoint PPT Presentation
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UsingConversionFactors
Just like a dozen represents 12 of something,such as donuts, iguanas, chemistry assignments, etc.,
a mole also represents an amount of something.It is 6.02 x 10 of something. A mole canrepresent 6.02 x 10 donuts, iguanas, toes, etc.In chemistry, it is normally used to representan amount of atoms, ions, molecules, or formulaunits.Collectively, atoms, ions, molecules, or formulaunits are called representative particles.
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Because chemists deal with suchlarge amounts of particles,it is easier to work with moles of particles
amounts of particles can be expressednot only as moles, but as mass (grams),as volume (liters), andas individual particles (atoms, molecules,
ions, formula units, etc.)
a measurement of a sampleof a molecule, H2O for example,can be convertedfrom massto molesto particlesto volumeand back againto any unit of measurement desired
OH
H
usingthe right
conversionfactors
this is so cool!
!
number ofrepresentative
particles
mass
1 mol22.4L
22.4L1 mol
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
number ofrepresentative
particles
mass
1 mol22.4L
22.4L1 mol
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
number ofrepresentative
particles
mass
1 mol22.4L
22.4L1 mol
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
number ofrepresentative
particles
mass
1 mol22.4L
22.4L1 mol
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
number ofrepresentative
particles
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
number ofrepresentative
particles
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
number ofrepresentative
particles
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
number ofrepresentative
particles
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
number ofrepresentative
particles
mass
1 mol22.4L
22.4L1 mol
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
35 g Al
35 g Al
number ofrepresentative
particles
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
? moles Al
35 g Al x 1 mol27 g
number ofrepresentative
particles
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
number ofrepresentative
particles
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
35 g Al x 1 mol27 g
35 g Al x 1 mol 27g=
number ofrepresentative
particles
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
35 g Al x 1 mol27 g
35 mol Al 27=
= 1.3 mols Al
number ofrepresentative
particles
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
0.8 moles SiO2
? mass SiO2
number ofrepresentative
particles
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
0.8 moles SiO2
? mass SiO2
number ofrepresentative
particles
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
0.8 moles SiO2 x 60.1 g SiO2
1 mole SiO2
= 0.8 x 60.1 g SiO2
= 48.1 g SiO2
number ofrepresent at ive
part icles
mass
1 mol22.4L
22.4L1 mol
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
n u m b er o frep resen ta tiv e
p a rtic les
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
200 g N2O
? molecules N2O
n u m b er o frep resen ta tiv e
p a rtic les
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
200 g N2O
? molecules N2O
n u m b er o frep resen ta tiv e
p a rtic les
6.02 x 10 particles1 mol
23
6.02 x 10 particles231 mol
1 molmolar mass
molar mass1 mol
moles
volumeat STP
mass
1 mol22.4L
22.4L1 mol
200 g N2O x x1 mole N2O 6.02 x 10 molecules N2O44.0 g N2O 1 mole N2O
23
200 x 6.02 x 10 molecules N2O44.0
23=
= 2.74 x 10 molecules N2O24
this is so
cool!!
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