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1 (stoy-key-ahm-e-tree)
Stoichiometry (stoy-key-ahm-e-tree)

2 Stoichiometry Study of quantitative aspects of chem reaction
Calculate amount of reactants or products in reaction Chem Equations MUST BE BALANCED!!!!

3 For example 2 tires + 1 frame  1 bicycle + 

4 If you have 56 tires and excess frames, how many bicycles can be made?
2 tires + 1 frame  1 bicycle If you have 56 tires and excess frames, how many bicycles can be made?

5 2H2 + O2  2H2O

6 Steps for Stoichiometric problem
Is it balanced? What are you given? What are you looking for? What do you need to use? Set up t-chart

7 2H2 + O2  2H2O Balanced? Given? Looking for? Need to use?
If you have 1.2mol of oxygen reacts with excess hydrogen, how many moles of water will be produced? Balanced? Given? Looking for? Need to use?

8 CH4 +2O2 CO2 + 2H2O Balanced? Given? Looking for? Need to use?
If you have 0.2mol of oxygen reacts with excess methane (CH4), how many moles of carbon dioxide will be produced? Balanced? Given? Looking for? Need to use?

9 V2O5 + 5CaS  5CaO + V2S5 Balanced? Given? Looking for? Need to use?
If you have 1.3 mol of Calcium Sulfide and excess Vanadium Oxide, how many moles of Calcium Oxide can be produced? Balanced? Given? Looking for? Need to use?

10 N H2  2NH3 If 0.31mol of ammonia (NH3) is produced, how many moles of Nitrogen were used? Balanced? Given? Looking for? Need to use?

11 6CO2 + 6H2O  C6H12O6 + 6O2 How many moles of water are required to produce 3.1mol of glucose (C6H12O6)? Balanced? Given? Looking for? Need to use?

12 How many moles of oxygen are required to react with 4.5mol of sulfur?
S8 + O2 SO2 How many moles of oxygen are required to react with 4.5mol of sulfur? Balanced? Given? Looking for? Need to use?

13 2NF3  N2 + 3F2 Balanced? Given? Looking for? Need to use?
If 6.2mol of Nitrogen trifluoride decompose, how many moles of fluorine will be produced? Balanced? Given? Looking for? Need to use?

14 Fe + 2AgNO3  Fe(NO3)2 + 2Ag Balanced? Given? Looking for?
If 3.2mol of silver are needed, how many moles of iron need to be reacted with excess silver nitrate? Balanced? Given? Looking for? Need to use?

15 3H2SO4+2B(OH)3 B2(SO4)3+ 6H2O Balanced? Given? Looking for?
If 0.31mol of Sulfuric acid (H2SO4) reacts with excess boron hydroxide, how many moles of water are produced? Balanced? Given? Looking for? Need to use?

16 CH4 + O2  CO2 + H2O Balanced? Given? Looking for? Need to use?
If 3.2mole of methane react with excess oxygen, how many moles of water are produced? Balanced? Given? Looking for? Need to use?

17 STOP

18 EXTRA CREDIT FROM POP QUIZ!
2H2 + O2  2H2O If you have 160g of oxygen reacts with excess hydrogen, how many moles of water will be produced? Balanced? Given? Looking for? Need to use?

19 CH4 +4Cl2 CCl4 + 4HCl Balanced? Given? Looking for? Need to use?
If you have 42g of methane reacts with excess chlorine, how many moles of hydrochloric acid (HCl) will be produced? Balanced? Given? Looking for? Need to use?

20 Al + Cl2  AlCl3 Balanced? Given? Looking for? Need to use?
If you have 71g of chlorine reacts with excess aluminum, how many moles of aluminum chloride will be produced? Balanced? Given? Looking for? Need to use?

21 3H2SO4+2B(OH)3 B2(SO4)3+ 6H2O Balanced? Given? Looking for?
If 43.6g of Sulfuric acid (H2SO4) reacts with excess boron hydroxide, how many moles of Boron Sulfate are produced? Balanced? Given? Looking for? Need to use?

22 Fe + 2AgNO3  Fe(NO3)2 + 2Ag Balanced? Given? Looking for?
If 3.2mol of silver are needed, how many grams of iron need to be reacted with excess silver nitrate? Balanced? Given? Looking for? Need to use?

23 N H2  2NH3 If 54.2g of ammonia (NH3) is produced, how many moles of Nitrogen were used? Balanced? Given? Looking for? Need to use?

24 C3H8 +5O2 3CO2 + 4H2O Balanced? Given? Looking for? Need to use?
If you have 68.4g of oxygen reacts with excess propane (C3H8), how many moles of carbon dioxide will be produced? Balanced? Given? Looking for? Need to use?

25 How many moles of oxygen are required to react with 514g of sulfur?
S O2 8SO2 How many moles of oxygen are required to react with 514g of sulfur? Balanced? Given? Looking for? Need to use?

26 Fe + AgNO3  Fe(NO3)2 + Ag Balanced? Given? Looking for? Need to use?
If 62.5g of silver are needed to be produced, how many moles of iron need to be reacted with excess silver nitrate? Balanced? Given? Looking for? Need to use?

27 2H2 + O2  2H2O Balanced? Given? Looking for? Need to use?
If you have 27.3 g of hydrogen reacting with excess oxygen, how many moles of water will be produced? Balanced? Given? Looking for? Need to use?

28 V2O5 + 5CaS  5CaO + V2S5 Balanced? Given? Looking for? Need to use?
If you have 1.3 mol of Calcium Sulfide and excess Vanadium Oxide, how many grams of Calcium Oxide can be produced? Balanced? Given? Looking for? Need to use?

29 CH4 + O2  CO2 + H2O Balanced? Given? Looking for? Need to use?
If 3.2mole of methane react with excess oxygen, how many grams of water are produced? Balanced? Given? Looking for? Need to use?

30 N H2  2NH3 If 0.31mol of ammonia (NH3) is produced, how many grams of Nitrogen were used? Balanced? Given? Looking for? Need to use?

31 3H2SO4+2B(OH)3 B2(SO4)3+ 6H2O Balanced? Given? Looking for?
If 0.31mol of Sulfuric acid (H2SO4) reacts with excess boron hydroxide, how many grams of water are produced? Balanced? Given? Looking for? Need to use?

32 STOP

33 2H2 + O2  2H2O Balanced? Given? Looking for? Need to use?
If you have 160g of oxygen, how many grams of water could be produced given excess hydrogen? Balanced? Given? Looking for? Need to use?

34 CH4 +4Cl2 CCl4 + 4HCl Balanced? Given? Looking for? Need to use?
If you have 42g of methane reacts with excess chlorine, how many grams of hydrochloric acid (HCl) will be produced? Balanced? Given? Looking for? Need to use?

35 Al + Cl2  AlCl3 Balanced? Given? Looking for? Need to use?
If you have 71g of chlorine, how many grams of aluminum would be needed to completely react the chlorine? Balanced? Given? Looking for? Need to use?

36 3H2SO4+2B(OH)3 B2(SO4)3+ 6H2O Balanced? Given? Looking for?
If 43.6g of Sulfuric acid (H2SO4) reacts with excess boron hydroxide, what mass of water is produced? Balanced? Given? Looking for? Need to use?

37 Fe + 2AgNO3  Fe(NO3)2 + 2Ag Balanced? Given? Looking for?
If 57.4g of silver are needed, how many grams of iron need to be reacted with excess silver nitrate? Balanced? Given? Looking for? Need to use?

38 N H2  2NH3 If 54.2g of ammonia (NH3) is produced, how many grams of Hydrogen were used? Balanced? Given? Looking for? Need to use?

39 C3H8 +5O2 3CO2 + 4H2O Balanced? Given? Looking for? Need to use?
If you have 68.4g of oxygen reacts with excess propane (C3H8), how many gramsof carbon dioxide will be produced? Balanced? Given? Looking for? Need to use?

40 What mass of oxygen is required to react with 514g of sulfur?
S O2 8SO2 What mass of oxygen is required to react with 514g of sulfur? Balanced? Given? Looking for? Need to use?

41 Fe + AgNO3  Fe(NO3)2 + Ag Balanced? Given? Looking for? Need to use?
If 62.5g of silver are needed to be produced, how many grams of silver nitrate are required to react with excess iron? Balanced? Given? Looking for? Need to use?

42 2H2 + O2  2H2O Balanced? Given? Looking for? Need to use?
If you have 27.3 g of hydrogen reacting with excess oxygen, what mass of water will be produced? Balanced? Given? Looking for? Need to use?

43 V2O5 + 5CaS  5CaO + V2S5 Balanced? Given? Looking for? Need to use?
If you have 153.8g of Calcium Sulfide and excess Vanadium Oxide, how many grams of Calcium Oxide can be produced? Balanced? Given? Looking for? Need to use?

44 CH4 + 2O2  CO2 +2H2O Balanced? Given? Looking for? Need to use?
If 42.5g of methane react with excess oxygen, how many grams of water are produced? Balanced? Given? Looking for? Need to use?

45 3H2SO4+2B(OH)3 B2(SO4)3+ 6H2O Balanced? Given? Looking for?
If 100.0g of Sulfuric acid (H2SO4) reacts with excess boron hydroxide, how many grams of water are produced? Balanced? Given? Looking for? Need to use?

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