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Whats 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.S T O I C H I O M E T R Y

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Law of Multiple Proportions John Dalton originated the idea that when elements combine, they do so in whole number ratios.1N2 + 3H2 2NH3


Law of Multiple ProportionsAtoms combine in whole number ratios _B + _M + _Ch _B2M3Ch 2311


Law of Multiple ProportionsAtoms Combine in Whole Number Ratios _F + _W + _H + _P2 _FW2HP2 12111


Law of Conservation of MassMatter 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


Magnesium Lab ResultsMagnesium reacts with Oxygen to produce Magnesium Oxide._Mg_O2_MgO 212MgO MgPLAY LAB VIDEO


Magnesium Lab ResultsWhat 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.

LESSON SUMMARYIdentify the Main Topic. Use my analogies. The topic we learned in chemistry today was __________, which is a lot likeGive an example of the topic. For instance, _____ is a good example of the topic becauseExplain additional details of your example. Furthermore, example shows the topic because it portrays


STOI-CANYON


STOI-CANYONGRAMSREACTANT 1GRAMSREACTANT 2GRAMSPRODUCT 2GRAMSPRODUCT 1


MOLEBRIDGEMOLEBRIDGEMOLEBRIDGEMOLEBRIDGESTOI-CANYON


MOLERATIOSTOI-CANYON


MOLERATIOGRAMSREACTANT 1GRAMSREACTANT 2GRAMSPRODUCT 2GRAMSPRODUCT 1+2O21CO2 1CH42H2O+


STOI-CANYONMOLE---------RATIOGRAMSREACTANT2GRAMSREACTANT1GRAMSPRODUCT2GRAMSPRODUCT1

1. When 12 grams of Magnesium reacts with Oxygen, how many grams of Magnesium Oxide is produced?QUESTION #12Mg + 1O2 2MgO SYNTHESIS REACTION


GRAMSREACTANT 1GRAMSREACTANT 2GRAMSPRODUCT 1+1O22MgO 2Mg1. When 12 grams of Magnesium reacts with Oxygen, how many grams of Magnesium Oxide is produced?2MgO-------2Mg

1. When 12 grams of Magnesium reacts with Oxygen, how many grams of Magnesium Oxide is produced?2Mg2MgO12 grams Mg 20 grams MgO= 0.5 moles Mg= 0.5 moles MgO= 20 grams MgO

Stoi-CanyonUse Mole Bridge to Find MolesUse Mole RatioUse Mole Bridge to Find Grams


2Mg + 1O2 2MgO 1. When 12 grams of Magnesium reacts with Oxygen, how many grams of Magnesium Oxide is produced?

Known12g Mg1

Molar Mass1mol24g

Mole Ratio2MgO2Mg

Molar Mass40g1mol

Answer

= 20g MgO

2. How much Oxygen is needed to produce 20 grams of Magnesium Oxide?QUESTION #22Mg + 1O2 2MgO SYNTHESIS REACTION


GRAMSREACTANT 1GRAMSREACTANT 2GRAMSPRODUCT 1+1O22MgO 2Mg2. How much Oxygen is needed to produce 20 grams of Magnesium Oxide?1O2-------2MgO

2. How much Oxygen is needed to produce 20 grams of Magnesium Oxide?2MgO1O220 grams MgO 8 grams O2= 0.5 moles MgO= 0.25 moles O2= 8 grams O2


2Mg + 1O2 2MgO 2. How much Oxygen is needed to produce 20 grams of Magnesium Oxide?

Known20g MgO1

Molar Mass1mol40g

Mole Ratio1O22MgO

Molar Mass32g1mol

Answer

= 8g O2

3. How much Magnesium is needed to completely react with 8 grams of Oxygen to produce Magnesium Oxide?QUESTION #32Mg + 1O2 2MgO SYNTHESIS REACTION

GRAMSREACTANT 1GRAMSREACTANT 2GRAMSPRODUCT 1+1O22MgO 2Mg3. How much Magnesium is needed to completely react with 8 grams of Oxygen?2Mg-------1O2

3. How much Magnesium is needed to completely react with 8 grams of Oxygen to produce Magnesium Oxide?1O22Mg8 grams O2 12 grams Mg= 0.25 moles O2= 0.5 moles Mg= 12g Mg


2Mg + 1O2 2MgO 3. How much Magnesium is needed to completely react with 8 grams of Oxygen to produce Magnesium Oxide?

Known8g O21

Molar Mass1mol32g

Mole Ratio2Mg1O2

Molar Mass24g1mol

Answer

= 12g Mg

4. When 84 grams of Nitrogen reacts with Hydrogen, how many grams of ammonia is produced?QUESTION #41N2 + 3H2 2NH3 SYNTHESIS REACTION


GRAMSREACTANT 1GRAMSREACTANT 2GRAMSPRODUCT 1+3H22NH3 1N24. When 84 grams of Nitrogen reacts with Hydrogen, how many grams of ammonia is produced?2NH3-------1N2

4. When 84 grams of Nitrogen reacts with Hydrogen, how many grams of ammonia is produced?1N22NH384 grams N2 102 grams NH3= 3 moles N2= 6 moles NH3= 102 grams NH3


1N2 + 3H2 2NH3 4. When 84 grams of Nitrogen reacts with Hydrogen, how many grams of ammonia is produced?

Known84g N21

Molar Mass1mol28g

Mole Ratio2NH31N2

Molar Mass17g1mol

Answer

= 102g NH3

5. How many grams of Methanol are produced when 56 grams of Carbon Monoxide reacts with Hydrogen?QUESTION #51CO + 2H2 1CH3OH SYNTHESIS REACTION

GRAMSREACTANT 1GRAMSREACTANT 2GRAMSPRODUCT 1+2H21CH3OH1CO5. How many grams of Methanol are produced when 56 grams of Carbon Monoxide reacts with Hydrogen?1CH3OH---------1CO

5. How many grams of Methanol are produced when 56 grams of Carbon Monoxide reacts with Hydrogen?1CO1CH3OH56 grams CO 64 grams CH3OH= 2 moles CO= 2 moles CH3OH= 64 grams CH3OH


1CO + 2H2 1CH3OH5. How many grams of Methanol are produced when 56 grams of Carbon Monoxide reacts with Hydrogen?

Known56g CO1

Molar Mass1mol28g

Mole Ratio1CH3OH1CO

Molar Mass32g1mol

Answer

= 64g CH3OH

QUESTION #61Na2O + 1H2O 2NaOH SYNTHESIS REACTION

GRAMSREACTANT 1GRAMSREACTANT 2GRAMSPRODUCT 1+1H2O2NaOH1Na2O6. How many grams of Sodium Hydroxide is produced when you react 93 grams of Sodium Oxide with excess Water?2NaOH---------1Na2O

6. How many grams of Sodium Hydroxide is produced when you react 93 grams of Sodium Oxide with excess Water?1Na2O2NaOH93 grams Na2O 120 grams NaOH= 1.5 moles Na2O= 3 moles NaOH= 120 grams NaOH


1Na2O + 1H2O 2NaOH6. How many grams of Sodium Hydroxide is produced when you react 60 grams of Sodium Oxide with excess Water?

Known93g Na2O1

Molar Mass1mol62g

Mole Ratio2NaOH1Na2O

Molar Mass40g1mol

Answer

= 120g NaOH

7. How many grams of Calcium Carbonate are needed to make 14 grams of Calcium Oxide?QUESTION #71CaCO3 1CaO + 1CO2 DECOMPOSITION REACTION

GRAMSREACTANT 1GRAMSPRODUCT 2GRAMSPRODUCT 1+1CaO1CO21CaCO37. How many grams of Calcium Carbonate are needed to make 14 grams of Calcium Oxide?1CaCO3---------1CaO

7. How many grams of Calcium Carbonate are needed to make 14 grams of Calcium Oxide?1CaO1CaCO314 grams CaO 25 grams CaCO3= 0.25 moles CaO= 0.25 moles CaCO3= 25 grams CaCO3


7. How many grams of Calcium Carbonate are needed to make 14 grams of Calcium Oxide?1CaCO3 1CaO + 1CO2

Known14g CaO1

Molar Mass1mol56g

Mole Ratio1CaCO31CaO

Molar Mass100g1mol

Answer

= 25g CaCO3

8. How many grams of Oxygen are produced from the decomposition of 105 grams of Beryllium Sulfate?QUESTION #81BeSO4 1BeS + 2O2 DECOMPOSITION REACTION

GRAMSREACTANT 1GRAMSPRODUCT 2GRAMSPRODUCT 1+1BeS2O21BeSO48. How many grams of Oxygen are produced from the decomposition of 105 grams of Beryllium Sulfate?2O2---------1BeSO4

8. How many grams of Oxygen are produced from the decomposition of 105 grams of Beryllium Sulfate?1BeSO42O2105 grams BeSO4 64 grams O2= 1 mole BeSO4= 2 moles O2= 64 grams O2


8. How many grams of Oxygen are produced from the decomposition of 105 grams of Beryllium Sulfate?1BeSO4 1BeS + 2O2

Known105g BeSO41

Molar Mass1mol105g

Mole Ratio2O21BeSO4

Molar Mass32g1mol

Answer

= 64g O2

9. How much Chlorine gas is produced by decomposing 36 grams of Calcium Chloride? QUESTION #91CaCl2 1Ca + 1Cl2 DECOMPOSITION REACTIONAVOGADRO STYLE

GRAMSREACTANT 1GRAMSPRODUCT 2GRAMSPRODUCT 1+1Ca1Cl21CaCl29. How much Chlorine gas is produced by decomposing 36 grams of Calcium Chloride? 1Cl2---------1CaCl2

9. How much Chlorine gas is produced by decomposing 36 grams of Calcium Chloride? 1CaCl21Cl236 grams CaCl2 21 grams Cl2= 0.3 moles CaCl2= 0.3 moles Cl2= 21 grams O2


9. How much Chlorine gas is produced by decomposing36 grams of Calcium Chloride? 1CaCl2 1Ca + 1Cl2

Known36g CaCl21

Molar Mass1mol110g

Mole Ratio1Cl21CaCl2

Molar Mass70g1mol

Answer

= 21g Cl2

10. When 680 grams of Silver Nitrate reacts with Magnesium, how many grams of Silver are produced?QUESTION #101Mg + 2AgNO3 1Mg(NO3)2 + 1Ag SINGLE REPLACEMENT REACTION

GRAMSREACTANT 1GRAMSPRODUCT 2GRAMSPRODUCT 110. When 680 grams of Silver Nitrate reacts with Magnesium, how many grams of Silver are produced?1Ag---------2AgNO3GRAMSREACTANT 2+1Mg(NO3)21Ag1Mg2AgNO3+

10. When 680 grams of Silver Nitrate reacts with Magnesium, how many grams of Silver are produced?2AgNO31Ag680 grams AgNO3 216 grams Ag= 4 moles AgNO3= 2 moles Ag= 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

Known680g AgNO31

Molar Mass1mol170g

Mole Ratio1Ag2AgNO3

Molar Mass108g1mol

Answer

= 216g Ag

11. How many grams of Titanium Chloride are needed to produce 141 grams of Magnesium Chloride?QUESTION #112TiCl3 + 3Mg 3MgCl2 + 2Ti SINGLE REPLACEMENT REACTION

GRAMSREACTANT 1GRAMSPRODUCT 2GRAMSPRODUCT 111. How many grams of Titanium Chloride are needed to produce 141 grams of Magnesium Chloride?2TiCl3---------3MgCl2GRAMSREACTANT 2+3MgCl22Ti2TiCl33Mg+

11. How many grams of Titanium Chloride are needed to produce 141 grams of Magnesium Chloride?3MgCl22TiCl3141 grams MgCl2 153 grams TiCl3= 1.5 moles MgCl2= 1 mole TiCl3= 153 grams TiCl3


11. How many grams of Titanium Chloride are needed to produce 141 grams of Magnesium Chloride?2TiCl3 + 3Mg 3MgCl2 + 2Ti

Known141g MgCl21

Molar Mass1mol94g

Mole Ratio2TiCl33MgCl2

Molar Mass153g1mol

Answer

= 153g TiCl3

12. If 54 grams of water are mixed with excess Magnesium Nitride, then how many grams of Ammonia are produced?QUESTION #121Mg3N2 + 6H2O 2NH3 + 3Mg(OH)2DOUBLE REPLACEMENT REACTION

GRAMSREACTANT 1GRAMSPRODUCT 2GRAMSPRODUCT 112. If 54 grams of water are mixed with excess Magnesium Nitride, then how many grams of Ammonia are produced?3NH3---------6H2OGRAMSREACTANT 2+2NH33Mg(OH)21Mg3N26H2O+

12. If 54 grams of water are mixed with excess Magnesium Nitride, then how many grams of Ammonia are produced?6H2O2NH354 grams H2O 17 grams NH3= 3 moles H2O= 1 mole NH3= 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

Known54g H2O1

Molar Mass1mol18g

Mole Ratio2NH36H2O

Molar Mass17g1mol

Answer

= 17g NH3

13. What mass of Hydrogen Sulfate is needed to completely react with 232 grams of Sodium Chloride? QUESTION #13DOUBLE REPLACEMENT REACTION2NaCl + 1H2SO4 2HCl + 1Na2SO4AVOGADRO STYLE

GRAMSREACTANT 1GRAMSPRODUCT 2GRAMSPRODUCT 113. What mass of Hydrogen Sulfate is needed to completely react with 232 grams of Sodium Chloride? 1H2SO4 ---------2NaClGRAMSREACTANT 2+2HCl2Na2SO42NaCl1H2SO4+

13. What mass of Hydrogen Sulfate is needed to completely react with 232 grams of Sodium Chloride? 2NaCl1H2SO4232 grams NaCl 196 grams H2SO4= 4 moles NaCl= 2 moles H2SO4= 196 grams H2SO4


13. What mass of Hydrogen Sulfate is needed to completely react with 232 grams of Sodium Chloride? 2NaCl + 1H2SO4 2HCl + 1Na2SO4

Known232g NaCl1

Molar Mass1mol58g

Mole Ratio1H2SO42NaCl

Molar Mass98g1mol

Answer

= 196g H2SO4

14. How many grams of Lithium Hydroxide will react with 147 grams of Hydrogen Phosphate?QUESTION #14DOUBLE REPLACEMENT REACTION3LiOH + 1H3PO4 1Li3PO4 + 3H2O

GRAMSREACTANT 1GRAMSPRODUCT 2GRAMSPRODUCT 114. How many grams of Lithium Hydroxide will react with 147 grams of Hydrogen Phosphate?3LiOH ---------1H3PO4GRAMSREACTANT 2+1Li3PO43H2O3LiOH1H3PO4+

14. How many grams of Lithium Hydroxide will react with 147 grams of Hydrogen Phosphate?1H3PO43LiOH232 grams H3PO4 108 grams LiOH= 1.5 moles H3PO4= 4.5 moles LiOH= 108 grams LiOH


14. How many grams of Lithium Hydroxide will react with 147 grams of Hydrogen Phosphate?3LiOH + 1H3PO4 1Li3PO4 + 3H2O

Known147g H3PO41

Molar Mass1mol98g

Mole Ratio3LiOH1H3PO4

Molar Mass24g1mol

Answer

= 108g LiOH

15. If 110 grams of Carbon Dioxide is produced from combusting Butene, then how many grams of Oxygen is needed?QUESTION #15COMBUSTION REACTION1C4H8+ 6O2 4CO2+ 4H2O

GRAMSREACTANT 1GRAMSPRODUCT 2GRAMSPRODUCT 115. If 110 grams of Carbon Dioxide is produced from combusting Butene, then how many grams of Oxygen is needed?6O2 ---------4CO2GRAMSREACTANT 2+4CO24H2O1C4H86O2+

15. If 110 grams of Carbon Dioxide is produced from combusting Butene, then how many grams of Oxygen is needed?4CO26O2110 grams CO2 120 grams O2= 2.5 moles CO2= 3.75 moles O2= 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

Known110g CO21

Molar Mass1mol44g

Mole Ratio6O24CO2

Molar Mass32g1mol

Answer

= 120g O2

16. If 216 grams of Water is produced from combusting Propane, then how many grams of Carbon Dioxide is also produced?QUESTION #16COMBUSTION REACTION1C3H8+ 5O2 3CO2+ 4H2O

GRAMSREACTANT 1GRAMSPRODUCT 2GRAMSPRODUCT 116. If 216 grams of Water is produced from combusting Propane, then how many grams of Carbon Dioxide is also produced?3CO2 ---------4H2OGRAMSREACTANT 2+3CO24H2O1C3H85O2+

16. If 216 grams of Water is produced from combusting Propane, then how many grams of Carbon Dioxide is also produced?3CO24H2O232 grams H2O 396 grams CO2= 12 moles H2O= 9 moles CO2= 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

Known216g H2O1

Molar Mass1mol18g

Mole Ratio3CO24H2O

Molar Mass44g1mol

Answer

= 396g CO2

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