The Mole
A mole in chemistry is known as a ____.
Counting Unit
The unit for molar mass
grams/mol (g/mol)
What is the molar mass of Carbon Dioxide?
44 amu or grams
6.02 x 1023 particles is referred to as ____.
Avagadro's number
Used by chemists to express amounts of particles such as atoms, molecules or ions
Mole
How many grams are in a mole.
atomic or molecular mass found on the periodic table
This chart is essential for computing molar mass.
periodic table
How many moles of Platinum are in 4.8 x 1023 atoms?
0.797 mol Pt
This is a fraction used in mole calculations in which the numerator and denominator are equal to each other
conversion factor
Conversion Factor used to convert from particles to moles
6.02 x 1023 particles / 1 mole
What is the abbreviation for the mole?
mol
Molar mass for a molecule is the sum of the ___ masses for each atom.
atomic
How many moles of Sodium Oxide are in 310 grams of the compound?
5 moles Na2O
Dimensional/unit Analysis uses a series of these fractions in order to change from one unit to another
conversion factor
Why do we use moles?
to make calculations easier
How many atoms are in a mole?
6.02 x 1023 atoms
This fraction is the conversion factor to convert grams of a substance to moles.
1 mol / molar mass (g)
How many grams of AlN are in 3.21 x 1018 molecules
0.0002185 grams
True or False: the numerator and the denominator of a conversion factor can be switched if need be.
True
Number of moles in 6.022 x 1023 molecules of Carbon dioxide
1 mole
What two things a mole is equal to.
Avogadro's number OR molar mass in grams
What is the molar mass of Glucose (C6H12O6)
180 grams
How many molecules are in 134.6 grams of Ca(OH)2?
1.095 x 1024 molecules Ca(OH)2
Dimensional/Unit Analysis is based on the idea of being able to cancel these.
Units
How many particles are in 34.5 grams of Na2S?
2.66 x 1023 particles