51
200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Conversion Factors Mole to Mole Gram to gram Mole to Particle/liters Limiting Reagents
200
300
400
500
100
200
300
400
500
100
200
300
400
500
100
200
300
400
500
100
200
300
400
500
100
Conversion Factors
Mole to
Mole
Gram to
gram
Mole to
Particle/liters
Limiting Reagents
How many atoms are in one mole ?
100 Pts.
6.02 X 1023 atoms
100 Points
How do you calculate the molar mass (g)?
200 Pts.
You add the mass numbers from the periodic table
200 Points
How many liters does 2 moles of a compound
take up?
300 Pts.
44.8 Liters
300 Points
2H2 + O2 → 2H2O
How many moles of H2O are being produced?
400 Pts.
2 moles
400 Points
4NH3 + 6NO → 5N2 + 6H2O
What is the mole ratio between N2 and NO?
500 Pts.
5 mol of N2
6 mol of NO
500 Points
N2 + 3H2 → 2NH3
How many moles of each compound are present?
100 Pts.
1 mole = N2
3 moles = H2
2 moles = NH3
100 Points
N2 + 3H2 → 2NH3
How many moles of NH3
are produced when 4.5 moles of N2 react with
Hydrogen?
200 Pts.
mol NH3 = 4.5 mol N2 X
= 9.0mol NH3
200 Points
2mol NH3
1mol N2
4Al + 3O2 → 2Al2O3
How many moles of O2 are needed to produce 1.75 moles
of Al2O3 ?
300 Pts.
300 Points
mol O2 = 1.75 mol Al2O3 X
= 2.625 mol O2
3mol O2
2mol Al2O3
400 Pts.4Al + 3O2 → 2Al2O3
How many moles of Aluminum are needed to produce 1.75 moles of
Al2O3 ?
400 Points
mol Al = 1.75 mol Al2O3 X
= 3.5 mol Al
4mol Al2mol Al2O3
Carbon disulfide is an important industrial solvent.
5C + 2SO2 → CS2 + 4CO How many moles of carbon
monoxide form at the same time that 0.246 mol CS2 forms?
500 Pts.
500 Points
0.984 mol CO
Name one way a reaction will not
produced 100% yield?
100 Pts.
1) Reaction not completed2) Impure chemicals3) Improper Equipment
100 Points
CO + 2H2 → CH3OH
How many grams of CH3OH is produced when 4.5 g of CO react with H2 ?
200 Pts.
5.14 g CH3OH
200 Points
5C + 2SO2 → CS2 + 4CO
How many grams of CO are produced when 600 grams of
carbon react?
300 Pts.
1120 g CO
300 Points
5C + 2SO2 → CS2 + 4CO
How many grams of SO2 are needed to produce 7grams of
CS2?
400 Pts.
11.8 g SO2
400 Points
4Al + 3O2 → 2Al2O3
How many grams of Al react with 4.35 grams of O2 to
produce aluminum oxide?
500 Pts.
4.89 grams of Al
500 Points
4K + O2 → 2K2O
How many particles of K2O are produced if 1.2 mol of K are
used?
100 Pts.
3.6 x 1023 particles
100 Points
How many molecules of Cl2 are produced if 2.0 X 1012 molecules
of Al react to form AlCl3?
2Al + 3Cl2 → 2AlCl3
200 Pts.
3.0 x 1012 molecules
200 Points
4K + O2 → 2K2O
How many particles of K2O are produced if 4.0 X 10 20
particles of K are used?
300 Pts.
2.0 x 1020 particles
300 Points
How many liters of CH3OH is produced when 7.2 moles of
CO reacts with H2?
CO(g) + 2H2(g) → CH3OH(g)
400 Pts.
161.3L of CH3OH
400 Points
How many liters of H2 gas is needed to produce 163
grams of CH3OH?
CO(g) + 2H2(g) → CH3OH(g)
500 Pts.
228.2 Liters H2
500 Points
What is the theoretical yield of water if 50.0grams of N2H4
reacts with O2?
N2H4 + O2 → N2 + 2H2O
100 Pts.
56.25 g H2O
100 Points
A student was performing a lab experiment and they got a yield of 57.6 grams. The teacher told them they should have gotten
60.0grams. What is the percent yield of the experiment?
200 Pts.
96 %
200 Points
What is the limiting reagent if 2 moles of CO react with
4 moles of O2?
2CO + O2 → 2CO2
300 Pts.
CO
300 Points
If 6 moles of N2 reacts with 6 moles of H2, the yield produced in the lab is 63 grams of NH3. What
is the percent yield?N2 + 3H2 → 2NH3
400 Pts.Daily Double 800 pts.
63/68 X 100 = 93%
800 Points
How many grams of the excess reagent is used in the reaction if 16 grams of O2 react with 14
grams of CO?
2CO + O2 → 2CO2
500 Pts.
44 grams of O2
500 Points
