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Let’s Play Hangman
What’s the Word?
• Based on the law of
conservation of mass, a balanced
chemical reaction allows you to
calculate back and forth, between
the mass and moles of reactants
and products.
STOICHIOMETRY
Law of Multiple Proportions
• John Dalton originated the
idea that when elements
combine, they do so in whole
number ratios.
1N2 + 3H2 2NH3
N
N
H H
H H
H H
H
H
N
H
N
H
H
H
Copyright 2011 CreativeChemistryLessons.com
Law of Multiple Proportions
Atoms combine in whole number ratios
2
_B + 3
_M + 1
_Ch 1_B2M3Ch
Copyright 2011 CreativeChemistryLessons.com
Law of Multiple Proportions
Atoms Combine in Whole Number Ratios
_F
1 + _W
2 + _H
1 +1
_P2 _FW
1
2HP2
Copyright 2011 CreativeChemistryLessons.com
Law of Conservation of Mass
• Matter cannot be created or destroyed
in any reaction, only rearranged, so
the number of reactant atoms MUST
EQUAL the number of product atoms.
1N2 + 3H2 2NH3
N
H
Copyright 2011 CreativeChemistryLessons.com
Magnesium Lab Results
• Magnesium reacts with Oxygen to
produce Magnesium Oxide.
2
_Mg
1
_O2
Mg
MgO
Mg
PLAY LAB VIDEO
2
_MgO
O
Copyright 2011 CreativeChemistryLessons.com
Magnesium Lab Results
• What happened to the mass of the
Magnesium after burning it?
• The mass increased.
• How can the Magnesium get
heavier after it is burned?
• Magnesium combined with
Oxygen to form a heavier
compound, Magnesium Oxide.
Copyright 2011 CreativeChemistryLessons.com
LESSON SUMMARY
Identify
the Main Topic. Use my analogies.
The topic we learned in chemistry today
was __________, which is a lot like…
Give
an example of the topic.
For instance, _____ is a good example of
the topic because…
Explain
additional details of your example.
Furthermore, example shows the topic
because it portrays…
STOI-CANYON
Copyright 2011 CreativeChemistryLessons.com
STOI-CANYON
GRAMS
REACTANT 2
GRAMS
PRODUCT 2
GRAMS
REACTANT 1
GRAMS
PRODUCT 1
Copyright 2011 CreativeChemistryLessons.com
STOI-CANYON
MOLE
BRIDGE
MOLE
BRIDGE
MOLE
BRIDGE
MOLE
BRIDGE
Copyright 2011 CreativeChemistryLessons.com
STOI-CANYON
MOLE
RATIO
Copyright 2011 CreativeChemistryLessons.com
1CH4 + 2O2 1CO2 + 2H2O
GRAMS
REACTANT 2
MOLE
RATIO
GRAMS
PRODUCT 2
GRAMS
PRODUCT 1
GRAMS
REACTANT 1
Copyright 2011 CreativeChemistryLessons.com
STOI-CANYON
GRAMS
REACTANT
2
GRAMS
PRODUCT
2
MOLE
--------RATIO
GRAMS
REACTANT
1
Copyright 2011 CreativeChemistryLessons.com
GRAMS
PRODUCT
1
QUESTION #1
1. When 12 grams of Magnesium
reacts with Oxygen, how many
grams of Magnesium Oxide is
produced?
2Mg + 1O2 2MgO
SYNTHESIS REACTION
2Mg + 1O2 2MgO
GRAMS
REACTANT 2
GRAMS
REACTANT 1
2MgO
------2Mg
1. When 12 grams of
Magnesium reacts with
Oxygen, how many grams
of Magnesium Oxide is
produced?
Copyright 2011 CreativeChemistryLessons.com
GRAMS
PRODUCT 1
1. When 12 grams of Magnesium reacts with Oxygen, how
many grams of Magnesium Oxide is produced?
Stoi-Canyon
Use Mole Bridge to Find Moles
24g/mol
2Mg2MgO
12g
÷
?
= 0.5 moles Mg
Use Mole Ratio
Use Mole Bridge to Find Grams
2MgO
2Mg
40g/mol
= 0.5 moles MgO
?
x
0.5
mol
= 20 grams MgO
12 grams Mg 20 grams MgO
1. When 12 grams of Magnesium reacts with Oxygen, how
many grams of Magnesium Oxide is produced?
2Mg + 1O2 2MgO
Known
Molar Mass
Mole Ratio
Molar Mass
12g Mg
1mol
2MgO
40g
1
24g
2Mg
1mol
Copyright 2011 CreativeChemistryLessons.com
Answer
= 20g
MgO
QUESTION #2
2. How much Oxygen is needed to
produce 20 grams of Magnesium
Oxide?
2Mg + 1O2 2MgO
SYNTHESIS REACTION
2Mg + 1O2 2MgO
GRAMS
REACTANT 2
GRAMS
REACTANT 1
1O2
------2MgO
2. How much Oxygen
is needed to produce
20 grams of
Magnesium
Oxide?
Copyright
2011 CreativeChemistryLessons.com
GRAMS
PRODUCT 1
2. How much Oxygen is needed to produce 20 grams of
Magnesium Oxide?
Stoi-Canyon
Use Mole Bridge to Find Moles
40g/mol
2MgO1O2
20g
÷
?
= 0.5 moles MgO
Use Mole Ratio
Use Mole Bridge to Find Grams
1O 2
2MgO
32g/mol
= 0.25 moles O2
?
x
0.25
mol
= 8 grams O2
20 grams MgO 8 grams O2
2. How much Oxygen is needed to produce 20 grams of
Magnesium Oxide?
2Mg + 1O2 2MgO
Known
Molar Mass
Mole Ratio
Molar Mass
20g MgO
1mol
1O2
32g
1
40g
2MgO
1mol
Answer
= 8g
O2
QUESTION #3
3. How much Magnesium is needed
to completely react with 8 grams
of Oxygen to produce Magnesium
Oxide?
2Mg + 1O2 2MgO
SYNTHESIS REACTION
2Mg + 1O2 2MgO
GRAMS
REACTANT 2
GRAMS
REACTANT 1
2Mg
------1O2
3. How much
Magnesium is needed
to completely react
with 8 grams of
Oxygen?
GRAMS
PRODUCT 1
3. How much Magnesium is needed to completely react with
8 grams of Oxygen to produce Magnesium Oxide?
Stoi-Canyon
1O22Mg
Use Mole Bridge to Find Moles
32g/mol
8g
÷
?
= 0.25 moles O2
Use Mole Ratio
Use Mole Bridge to Find Grams
2Mg
1O 2
24g/mol
= 0.5 moles Mg
?
x
0.5
mol
= 12g Mg
8 grams O2 12 grams Mg
3. How much Magnesium is needed to completely react with
8 grams of Oxygen to produce Magnesium Oxide?
2Mg + 1O2 2MgO
Known
Molar Mass
Mole Ratio
Molar Mass
8g O2
1mol
2Mg
24g
1
32g
1O2
1mol
Answer
= 12g
Mg
QUESTION #4
4. When 84 grams of Nitrogen
reacts with Hydrogen, how
many grams of ammonia is
produced?
1N2 + 3H2 2NH3
SYNTHESIS REACTION
1N2 + 3H2 2NH3
GRAMS
REACTANT 2
GRAMS
REACTANT 1
2NH3
------1N2
4. When 84 grams of
Nitrogen reacts with
Hydrogen, how many
grams of ammonia is
Copyright 2011 produced?
CreativeChemistryLessons.com
GRAMS
PRODUCT 1
4. When 84 grams of Nitrogen reacts with Hydrogen, how
many grams of ammonia is produced?
Stoi-Canyon
1N22NH3
Use Mole Bridge to Find Moles
28g/mol
84g
÷
?
= 3 moles N2
Use Mole Ratio
Use Mole Bridge to Find Grams
2NH3
1N 2
17g/mol
= 6 moles NH3
?
x
6mol
= 102 grams NH3
84 grams N2 102 grams NH3
4. When 84 grams of Nitrogen reacts with Hydrogen, how
many grams of ammonia is produced?
1N2 + 3H2 2NH3
Known
Molar Mass
Mole Ratio
Molar Mass
84g N2
1mol
2NH3
17g
1
28g
1N2
1mol
Answer
= 102g
NH3
LESSON SUMMARY
Identify
the Main Topic. Use my analogies.
The topic we learned in chemistry today
was __________, which is a lot like…
Give
an example of the topic.
For instance, _____ is a good example of
the topic because…
Explain
additional details of your example.
Furthermore, example shows the topic
because it portrays…
QUESTION #5
5. How many grams of
Methanol are produced when
56 grams of Carbon Monoxide
reacts with Hydrogen?
1CO + 2H2 1CH3OH
SYNTHESIS REACTION
1CO + 2H2 1CH3OH
GRAMS
REACTANT 2
1CH3OH
--------1CO
GRAMS
REACTANT 1
5. How many grams of
Methanol are produced
when 56 grams of
Carbon Monoxide
reacts with Hydrogen?
GRAMS
PRODUCT 1
5. How many grams of Methanol are produced when 56
grams of Carbon Monoxide reacts with Hydrogen?
Stoi-Canyon
Use Mole Bridge to Find Moles
28g/mol
1CO1CH3OH 56g
÷
?
= 2 moles CO
Use Mole Ratio
1CH3OH
1CO
= 2 moles CH3OH
Use Mole Bridge to Find Grams
32g/mol
?
x
2
mol
= 64 grams CH3OH
56 grams CO 64 grams CH3OH
5. How many grams of Methanol are produced when 56
grams of Carbon Monoxide reacts with Hydrogen?
1CO + 2H2 1CH3OH
Known
56g CO
1
Molar Mass
Mole Ratio
1mol 1CH3OH
28g
1CO
Molar Mass
32g
1mol
Answer
= 64g
CH3OH
QUESTION #6
6. How many grams of Sodium
Hydroxide is produced when
you react 60 93 grams of
Sodium Oxide with excess
Water?
1Na2O + 1H2O 2NaOH
SYNTHESIS REACTION
1Na2O + 1H2O 2NaOH
GRAMS
REACTANT 2
2NaOH
--------1Na2O
GRAMS
REACTANT 1
6. How many grams of
Sodium Hydroxide is
produced when you
react 93 grams of
Sodium Oxide with
excess Water?
GRAMS
PRODUCT 1
6. How many grams of Sodium Hydroxide is produced when
you react 93 grams of Sodium Oxide with excess Water?
Stoi-Canyon
Use Mole Bridge to Find Moles
62g/mol
1Na2O2NaOH
93g
÷
?
= 1.5 moles Na2O
Use Mole Ratio
Use Mole Bridge to Find Grams
2NaOH
1Na 2O
40g/mol
= 3 moles NaOH
?
x
3
mol
= 120 grams NaOH
93 grams Na2O 120 grams NaOH
6. How many grams of Sodium Hydroxide is produced when
you react 60 grams of Sodium Oxide with excess Water?
1Na2O + 1H2O 2NaOH
Known
Molar Mass
Mole Ratio
Molar Mass
93g Na2O
1mol
2NaOH
40g
1
62g
1Na2O
1mol
Answer
= 120g
NaOH
QUESTION #7
7. How many grams of Calcium
Carbonate are needed to make
14 grams of Calcium Oxide?
1CaCO3 1CaO + 1CO2
DECOMPOSITION REACTION
1CaCO3 1CaO + 1CO2
1CaCO3
--------1CaO
GRAMS
REACTANT 1
7. How many grams of
Calcium Carbonate are
needed to make 14
grams of Calcium Oxide?
GRAMS
PRODUCT 2
GRAMS
PRODUCT 1
7. How many grams of Calcium Carbonate are needed to
make 14 grams of Calcium Oxide?
Stoi-Canyon
Use Mole Bridge to Find Moles
56g/mol
1CaO1CaCO3
14g
÷
?
= 0.25 moles CaO
Use Mole Ratio
1CaCO3
1CaO
Use Mole Bridge to Find Grams
100g/mol
?
x
0.25
mol
= 0.25 moles CaCO3 = 25 grams CaCO3
14 grams CaO 25 grams CaCO3
7. How many grams of Calcium Carbonate are needed to
make 14 grams of Calcium Oxide?
1CaCO3 1CaO + 1CO2
Known
Molar Mass
Mole Ratio
Molar Mass
14g CaO
1mol
1CaCO3
100g
1
56g
1CaO
1mol
Answer
= 25g
CaCO3
QUESTION #8
8. How many grams of Oxygen
are produced from the
decomposition of 105 grams of
Beryllium Sulfate?
1BeSO4 1BeS + 2O2
DECOMPOSITION REACTION
1BeSO4 1BeS + 2O2
2O2
--------1BeSO4
GRAMS
REACTANT 1
8. How many grams of
Oxygen are produced
from the decomposition
of 105 grams of
Beryllium Sulfate?
GRAMS
PRODUCT 2
GRAMS
PRODUCT 1
8. How many grams of Oxygen are produced from the
decomposition of 105 grams of Beryllium Sulfate?
Stoi-Canyon
Use Mole Bridge to Find Moles
105g/mol
1BeSO42O2
105g
÷
?
= 1 mole BeSO4
Use Mole Ratio
Use Mole Bridge to Find Grams
2O 2
1BeSO 4
32g/mol
= 2 moles O2
?
x
2
mol
= 64 grams O2
105 grams BeSO4 64 grams O2
8. How many grams of Oxygen are produced from the
decomposition of 105 grams of Beryllium Sulfate?
1BeSO4 1BeS + 2O2
Known
Molar Mass
Mole Ratio
Molar Mass
105g BeSO4
1mol
2O2
32g
1
105g
1BeSO4
1mol
Answer
= 64g
O2
LESSON SUMMARY
Identify
the Main Topic. Use my analogies.
The topic we learned in chemistry today
was __________, which is a lot like…
Give
an example of the topic.
For instance, _____ is a good example of
the topic because…
Explain
additional details of your example.
Furthermore, example shows the topic
because it portrays…
QUESTION #9
AVOGADRO STYLE
9. How much Chlorine gas is
produced by decomposing 36
grams of Calcium Chloride?
1CaCl2 1Ca + 1Cl2
DECOMPOSITION REACTION
1CaCl2 1Ca + 1Cl2
1Cl2
--------1CaCl2
GRAMS
REACTANT 1
9. How much Chlorine
gas is produced by
decomposing 36 grams
of Calcium Chloride?
GRAMS
PRODUCT 2
GRAMS
PRODUCT 1
9. How much Chlorine gas is produced by decomposing
36 grams of Calcium Chloride?
Stoi-Canyon
Use Mole Bridge to Find Moles
110g/mol
1CaCl21Cl2
36g
÷
?
= 0.3 moles CaCl2
Use Mole Ratio
Use Mole Bridge to Find Grams
1Cl2
1CaCl2
70g/mol
= 0.3 moles Cl2
?
x
0.3
mol
= 21 grams O2
36 grams CaCl2 21 grams Cl2
9. How much Chlorine gas is produced by decomposing
36 grams of Calcium Chloride?
1CaCl2 1Ca + 1Cl2
Known
Molar Mass
Mole Ratio
Molar Mass
36g CaCl2
1mol
1Cl2
70g
1
110g
1CaCl2
1mol
Answer
= 21g
Cl2
QUESTION #10
10. When 680 grams of Silver
Nitrate reacts with
Magnesium, how many grams
of Silver are produced?
1Mg + 2AgNO3 1Mg(NO3)2 + 1Ag
SINGLE REPLACEMENT REACTION
1Mg + 2AgNO3 1Mg(NO3)2 + 1Ag
GRAMS
REACTANT 2
GRAMS
REACTANT 1
1Ag
--------2AgNO3
10. When 680 grams of
Silver Nitrate reacts with
Magnesium, how many
grams of Silver are
produced?
GRAMS
PRODUCT 2
GRAMS
PRODUCT 1
10. When 680 grams of Silver Nitrate reacts with
Magnesium, how many grams of Silver are produced?
Stoi-Canyon
Use Mole Bridge to Find Moles
170g/mol
2AgNO31Ag
680g
÷
?
= 4 moles AgNO3
Use Mole Ratio
Use Mole Bridge to Find Grams
1Ag
2AgNO3
108g/mol
= 2 moles Ag
?
x
2
mol
= 216 grams Ag
680 grams AgNO3 216 grams Ag
10. When 680 grams of Silver Nitrate reacts with
Magnesium, how many grams of Silver are produced?
1Mg + 2AgNO3 1Mg(NO3)2 + 1Ag
Known
Molar Mass
680g AgNO3
1mol
1Ag
108g
1
170g
2AgNO3
1mol
Mole Ratio
Molar Mass
Answer
= 216g
Ag
QUESTION #11
11. How many grams of Titanium
Chloride are needed to produce
141 grams of Magnesium
Chloride?
2TiCl3 + 3Mg 3MgCl2 + 2Ti
SINGLE REPLACEMENT REACTION
2TiCl3 + 3Mg 3MgCl2 + 2Ti
GRAMS
REACTANT 2
GRAMS
REACTANT 1
2TiCl3
--------3MgCl2
11. How many grams of
Titanium Chloride are
needed to produce 141
grams of Magnesium
Chloride?
GRAMS
PRODUCT 2
GRAMS
PRODUCT 1
11. How many grams of Titanium Chloride are needed to
produce 141 grams of Magnesium Chloride?
Stoi-Canyon
Use Mole Bridge to Find Moles
94g/mol
3MgCl22TiCl3
141g
÷
?
= 1.5 moles MgCl2
Use Mole Ratio
Use Mole Bridge to Find Grams
2TiCl3
3MgCl2
153g/mol
= 1 mole TiCl3
?
x
1
mol
= 153 grams TiCl3
141 grams MgCl2 153 grams TiCl3
11. How many grams of Titanium Chloride are needed to
produce 141 grams of Magnesium Chloride?
2TiCl3 + 3Mg 3MgCl2 + 2Ti
Known
Molar Mass
Mole Ratio
Molar Mass
141g MgCl2
1mol
2TiCl3
153g
1
94g
3MgCl2
1mol
Answer
= 153g
TiCl3
QUESTION #12
12. If 54 grams of water are
mixed with excess Magnesium
Nitride, then how many grams of
Ammonia are produced?
1Mg3N2 + 6H2O 2NH3 + 3Mg(OH)2
DOUBLE REPLACEMENT REACTION
1Mg3N2 + 6H2O 2NH3 + 3Mg(OH)2
GRAMS
REACTANT 2
GRAMS
REACTANT 1
3NH3
--------6H2O
12. If 54 grams of water
are mixed with excess
Magnesium Nitride, then
how many grams of
Ammonia are produced?
GRAMS
PRODUCT 2
GRAMS
PRODUCT 1
12. If 54 grams of water are mixed with excess Magnesium
Nitride, then how many grams of Ammonia are produced?
Stoi-Canyon
Use Mole Bridge to Find Moles
18g/mol
6H2O2NH3
54g
÷
?
= 3 moles H2O
Use Mole Ratio
Use Mole Bridge to Find Grams
2NH3
6H 2O
17g/mol
= 1 mole NH3
?
x
1
mol
= 17 grams NH3
54 grams H2O 17 grams NH3
12. If 54 grams of water are mixed with excess Magnesium
Nitride, then how many grams of Ammonia are produced?
1Mg3N2 + 6H2O 2NH3 + 3Mg(OH)2
Known
Molar Mass
Mole Ratio
Molar Mass
54g H2O
1mol
2NH3
17g
1
18g
6H2O
1mol
Answer
= 17g
NH3
QUESTION #13
AVOGADRO STYLE
13. What mass of Hydrogen
Sulfate is needed to completely
react with 232 grams of Sodium
Chloride?
2NaCl + 1H2SO4 2HCl + 1Na2SO4
DOUBLE REPLACEMENT REACTION
2NaCl + 1H2SO4 2HCl + 2Na2SO4
GRAMS
REACTANT 2
GRAMS
REACTANT 1
1H2SO4
--------2NaCl
13. What mass of
Hydrogen Sulfate is
needed to completely
react with 232 grams of
Sodium Chloride?
GRAMS
PRODUCT 2
GRAMS
PRODUCT 1
13. What mass of Hydrogen Sulfate is needed to completely
react with 232 grams of Sodium Chloride?
Stoi-Canyon
Use Mole Bridge to Find Moles
58g/mol
2NaCl1H2SO4
232g
÷
?
= 4 moles NaCl
Use Mole Ratio
1H 2SO 4
2NaCl
= 2 moles H2SO4
Use Mole Bridge to Find Grams
98g/mol
?
x
2
mol
= 196 grams H2SO4
232 grams NaCl 196 grams H2SO4
13. What mass of Hydrogen Sulfate is needed to completely
react with 232 grams of Sodium Chloride?
2NaCl + 1H2SO4 2HCl + 1Na2SO4
Known
Molar Mass
Mole Ratio
Molar Mass
232g NaCl
1mol
1H2SO4
98g
1
58g
2NaCl
1mol
Answer
= 196g
H2SO4
QUESTION #14
14. How many grams of Lithium
Hydroxide will react with 147
grams of Hydrogen Phosphate?
3LiOH + 1H3PO4 1Li3PO4 + 3H2O
DOUBLE REPLACEMENT REACTION
3LiOH + 1H3PO4 1Li3PO4 + 3H2O
GRAMS
REACTANT 2
GRAMS
REACTANT 1
3LiOH
--------1H3PO4
14. How many grams of
Lithium Hydroxide will
react with 147 grams of
Hydrogen Phosphate?
GRAMS
PRODUCT 2
GRAMS
PRODUCT 1
14. How many grams of Lithium Hydroxide will react with
147 grams of Hydrogen Phosphate?
Stoi-Canyon
Use Mole Bridge to Find Moles
98g/mol
1H3PO43LiOH
147g
÷
?
= 1.5 moles H3PO4
Use Mole Ratio
Use Mole Bridge to Find Grams
3LiOH
1H3PO4
24g/mol
= 4.5 moles LiOH
?
x
4.5
mol
= 108 grams LiOH
232 grams H3PO4 108 grams LiOH
14. How many grams of Lithium Hydroxide will react with
147 grams of Hydrogen Phosphate?
3LiOH + 1H3PO4 1Li3PO4 + 3H2O
Known
Molar Mass
Mole Ratio
Molar Mass
147g H3PO4
1mol
3LiOH
24g
1
98g
1H3PO4
1mol
Answer
= 108g
LiOH
QUESTION #15
15. If 110 grams of Carbon Dioxide is
produced from combusting Butene,
then how many grams of Oxygen is
needed?
1C4H8 + 6O2 4CO2 + 4H2O
COMBUSTION REACTION
1C4H8 + 6O2 4CO2 + 4H2O
GRAMS
REACTANT 2
GRAMS
REACTANT 1
6O2
--------4CO2
15. If 110 grams of
Carbon Dioxide is
produced from
combusting Butene,
then how many grams
of Oxygen is needed?
GRAMS
PRODUCT 2
GRAMS
PRODUCT 1
15. If 110 grams of Carbon Dioxide is produced from combusting
Butene, then how many grams of Oxygen is needed?
Stoi-Canyon
Use Mole Bridge to Find Moles
44g/mol
4CO26O2
110g
÷
?
= 2.5 moles CO2
Use Mole Ratio
Use Mole Bridge to Find Grams
6O 2
4CO 2
32g/mol
= 3.75 moles O2
?
x
3.75
mol
= 120 grams O2
110 grams CO2 120 grams O2
15. If 110 grams of Carbon Dioxide is produced from combusting
Butene, then how many grams of Oxygen is needed?
1C4H8 + 6O2 4CO2 + 4H2O
Known
Molar Mass
Mole Ratio
Molar Mass
110g CO2
1mol
6O2
32g
1
44g
4CO2
1mol
Answer
= 120g
O2
QUESTION #16
16. If 216 grams of Water is produced
from combusting Propane, then how
many grams of Carbon Dioxide is
also produced?
1C3H8 + 5O2 3CO2 + 4H2O
COMBUSTION REACTION
1C3H8 + 5O2 3CO2 + 4H2O
GRAMS
REACTANT 2
GRAMS
REACTANT 1
3CO2
--------4H2O
16. If 216 grams of
Water is produced from
combusting Propane,
then how many grams
of Carbon Dioxide is
also produced?
GRAMS
PRODUCT 2
GRAMS
PRODUCT 1
16. If 216 grams of Water is produced from combusting Propane,
then how many grams of Carbon Dioxide is also produced?
Stoi-Canyon
Use Mole Bridge to Find Moles
18g/mol
3CO24H2O
216g
÷
?
= 12 moles H2O
Use Mole Ratio
Use Mole Bridge to Find Grams
3CO 2
4H 2O
44g/mol
= 9 moles CO2
?
x
9
mol
= 396 grams CO2
232 grams H2O 396 grams CO2
16. If 216 grams of Water is produced from combusting Propane,
then how many grams of Carbon Dioxide is also produced?
1C3H8 + 5O2 3CO2 + 4H2O
Known
Molar Mass
Mole Ratio
Molar Mass
216g H2O
1mol
3CO2
44g
1
18g
4H2O
1mol
Answer
= 396g
CO2
LESSON SUMMARY
Identify
the Main Topic. Use my analogies.
The topic we learned in chemistry today
was __________, which is a lot like…
Give
an example of the topic.
For instance, _____ is a good example of
the topic because…
Explain
additional details of your example.
Furthermore, example shows the topic
because it portrays…