Mole Facts
Moles ↔ Grams
Moles ↔ Particles
Two Step Conversions
Molar Mass
100
1 mole is equal to how many particles?
What do we call this number?
1 mol = 6.02 x 1023 particles
Avogadro's Number
100
Calculate the number of moles in 100.0 grams of Gold (Au).
.51 mol Au
100
If you have 3.01 x 1023 atoms of Silver (Ag), how many moles do you have?
.50 mols Ag
100
How many molecules are in 150.00 grams of phosphorus pentachloride PCl5?
4.34 x 1023 molecules PCl5
100
What are the units for molar mass?
grams per mole
g/mol
200
When wanting to find the number of grams in a mol sample, what do we use as our conversion factor?
1 mol = molar mass (g/mol)
200
How many moles are in 28.0 grams of Iron (Fe)?
.50 mol Fe
200
How many molecules are in 1.25 moles of water H2O?
7.53 x 1023 molecules H2O
200
Find the mass of 9.15 x 1024 molecules of carbon dioxide CO2.
668.92 g CO2
200
Calculate the molar mass for CaCl2
110.98 g/mol
300
Who has more particles: 1 mol of Na or 1 mol of NaC2H3O2?
They both have 6.02 x 1023 particles
300
Calculate the number of moles in 10.0 grams of Calcium carbonate CaCO3.
.10 mols CaCO3
300
How many particles are in 4.0 moles of Magnesium chloride MgCl2?
2.41 x 1024 particles MgCl2
300
How many molecules are in 50.00 grams of water H2O?
1.67 x 1024 molecules H2O
300
Calculate the molar mass for NH4Br
97.95 g/mol
400
Who has more moles: A 65.4 gram sample of Zinc or a 12.0 gram sample of Carbon?
They both have 1 mol worth. The molar mass of any element/compound represents 1 mol always.
400
if you have 0.45 moles of Glucose (C6H12O6), what is its mass in grams?
81.08 g glucose
400
How many moles are equivalent to 1.20 x 1024 atoms of Sulfur?
1.99 mols S
400
Find the mass of 3.01 x 1022 molecules of potassium nitrate KNO3.
5.04 g KNO3
400
Calculate the molar mass for Sr3(PO4)2
452.80 g/mol
500
This table shows that who has the greatest number of atoms?
They all have the same number of atoms.
1 mol = molar mass
1 molar = 6.02 x 1023 atoms
The gram sample represents the element's molar mass.
Since the molar mass of any element/compound is 1 mol, and since 1 mol always represents 6.02 x 1023 particles, the molar mass of these elements represent 6.02 x 1023 atoms
500
Convert 150.0 grams of Iron(III) oxide Fe2O3 into moles.
.94 mols Fe2O3
500
If a sample contains 9.03 x 1022 molecules of Ammonia (NH3), how many moles are present?
.15 mols NH3
500
What is the mass of 9.25 x 1024 molecules of silver nitrate AgNO3?
2610.28 g AgNO3
500
Calculate the molar mass for (NH4)2SO4
132.17 g/mol