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Let’s Play Hangman

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. S T O I C H I O M E T R Y. Law of Multiple Proportions.

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Let’s Play Hangman

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  1. Let’s Play Hangman

  2. What’s the Word? • Based on the law ofconservation 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

  3. Law of Multiple Proportions • John Dalton originated theidea that when elements combine, they do so in whole number ratios. 1N2 + 3H2 2NH3 N N N N H H H H H H H H H H H H

  4. Law of Multiple ProportionsAtoms combine in whole number ratios _B + _M + _Ch  _B2M3Ch 2 3 1 1

  5. Law of Multiple ProportionsAtoms Combine in Whole Number Ratios _F + _W + _H + _P2  _FW2HP2 1 2 1 1 1

  6. 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

  7. Magnesium Lab Results • Magnesium reacts with Oxygen to produce Magnesium Oxide. 2 1 2 _Mg _O2 _MgO Mg MgO Mg O PLAY LAB VIDEO

  8. 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.

  9. 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…

  10. STOI-CANYON

  11. STOI-CANYON GRAMS REACTANT 2 GRAMS PRODUCT 2 GRAMS PRODUCT 1 GRAMS REACTANT 1

  12. STOI-CANYON MOLE BRIDGE MOLE BRIDGE MOLE BRIDGE MOLE BRIDGE

  13. STOI-CANYON MOLE RATIO

  14. 1CH4 + 2O2  1CO2 + 2H2O GRAMS REACTANT 2 GRAMS PRODUCT 2 MOLE RATIO GRAMS PRODUCT 1 GRAMS REACTANT 1

  15. STOI-CANYON GRAMS REACTANT 2 GRAMS PRODUCT 2 MOLE --------- RATIO GRAMS REACTANT 1 GRAMS PRODUCT 1

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

  17. 2Mg + 1O2  2MgO GRAMS REACTANT 2 2MgO ------- 2Mg 1. When 12 grams of Magnesiumreacts with Oxygen, how manygrams of Magnesium Oxideis produced? GRAMS REACTANT 1 GRAMS PRODUCT 1

  18. 2Mg2MgO 24g/mol 40g/mol = 0.5 moles Mg ? 0.5 mol 12g ? ÷ x = 0.5 moles MgO = 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?

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

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

  21. 2Mg + 1O2  2MgO GRAMS REACTANT 2 1O2 ------- 2MgO 2. How much Oxygen is needed to produce 20 grams of Magnesium Oxide? GRAMS REACTANT 1 GRAMS PRODUCT 1

  22. 2MgO1O2 40g/mol 32g/mol = 0.5 moles MgO ? 0.25 mol 20g ? ÷ x = 0.25 moles O2 = 8 grams O2 20 grams MgO8 grams O2 2. How much Oxygen is needed to produce 20 grams of Magnesium Oxide?

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

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

  25. 2Mg + 1O2  2MgO GRAMS REACTANT 2 2Mg ------- 1O2 3. How much Magnesium is needed to completely react with 8 grams of Oxygen? GRAMS REACTANT 1 GRAMS PRODUCT 1

  26. 1O22Mg 32g/mol 24g/mol = 0.25 moles O2 ? 0.5 mol 8g ? ÷ x = 0.5 moles Mg = 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?

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

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

  29. 1N2 + 3H2  2NH3 GRAMS REACTANT 2 2NH3 ------- 1N2 4. When 84 grams of Nitrogen reacts with Hydrogen, how manygrams of ammonia is produced? GRAMS REACTANT 1 GRAMS PRODUCT 1

  30. 1N22NH3 28g/mol 17g/mol = 3 moles N2 ? 6mol 84g ? ÷ x = 6 moles NH3 = 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?

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

  32. 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…

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

  34. 1CO + 2H2  1CH3OH GRAMS REACTANT 2 1CH3OH --------- 1CO 5. How many grams of Methanol are produced when 56 grams of Carbon Monoxidereacts with Hydrogen? GRAMS REACTANT 1 GRAMS PRODUCT 1

  35. 28g/mol 32g/mol 1CO1CH3OH = 2 moles CO ? 2 mol 56g ? ÷ x = 2 moles CH3OH = 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?

  36. 5. How many grams of Methanol are produced when 56 grams of Carbon Monoxide reacts with Hydrogen? 1CO + 2H2 1CH3OH

  37. Question #6 1Na2O + 1H2O  2NaOH SYNTHESIS REACTION 6.How many grams of Sodium Hydroxide is produced when you react 6093grams of Sodium Oxide with excess Water?

  38. 1Na2O + 1H2O  2NaOH GRAMS REACTANT 2 2NaOH --------- 1Na2O 6. How many grams of Sodium Hydroxide is produced when you react 93 grams of Sodium Oxidewith excess Water? GRAMS REACTANT 1 GRAMS PRODUCT 1

  39. 62g/mol 40g/mol 1Na2O2NaOH = 1.5 moles Na2O ? 3 mol 93g ? ÷ x = 3 moles NaOH = 120 grams NaOH 93 grams Na2O  120 grams NaOH 6. How many grams of Sodium Hydroxide is produced when you react 93 grams of Sodium Oxide with excess Water?

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

  41. Question #7 1CaCO3 1CaO +1CO2 DECOMPOSITION REACTION 7.How many grams of Calcium Carbonateare needed to make 14 grams of Calcium Oxide?

  42. 1CaCO3  1CaO + 1CO2 GRAMS PRODUCT 2 1CaCO3 --------- 1CaO GRAMS REACTANT 1 GRAMS PRODUCT 1 7. How many grams of Calcium Carbonate are needed to make 14 grams of Calcium Oxide?

  43. 56g/mol 100g/mol 1CaO1CaCO3 = 0.25 moles CaO ? 0.25 mol 14g ? ÷ x = 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?

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

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

  46. 1BeSO4  1BeS + 2O2 GRAMS PRODUCT 2 2O2 --------- 1BeSO4 8. How many grams of Oxygen are produced from the decomposition of 105 grams of Beryllium Sulfate? GRAMS REACTANT 1 GRAMS PRODUCT 1

  47. 105g/mol 32g/mol 1BeSO42O2 = 1 mole BeSO4 ? 2 mol 105g ? ÷ x = 2 moles O2 = 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?

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

  49. 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…

  50. AVOGADRO STYLE Question #9 1CaCl2 1Ca +1Cl2 DECOMPOSITION REACTION 9.How much Chlorine gas is produced by decomposing 36grams of Calcium Chloride?

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