Stoichiometry

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# Stoichiometry - PowerPoint PPT Presentation

Stoichiometry. Test review Let’s find out if we can be ready for a test on Thursday 3/06 !. Games!. At each question, each team mate with a correct answer gets to take their turn.

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## PowerPoint Slideshow about 'Stoichiometry' - diata

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### Stoichiometry

Test review

Let’s find out if we can be ready for a test on Thursday 3/06!

At each question, each team mate with a correct answer gets to take their turn.
• If you need an explanation, ask your partner for help. If that doesn’t work, ask me to go over it before the next question!
• Keep a record of points scored and games won.
• Most games won, or person closest to winning your game at the bell gets tickets!

H2 F2 Cl2

Br2 I2 O2

N2

What is the name of the conversion factor that lets us go from moles of one compound to moles of another compound?
What is the mole ratio of TNT to carbon monoxide in the following equation? C7H5N3O6 CO + C + H2O + N2
Na2 CO3
• 23+23+12+16+16+16= 106g/mol
Fe2(SO4)3
• 55.9+55.9+ 3(32.1) + 12(16)=400.1 g/mole
How many grams potassium chloride are in 14.6 moles potassium chloride? 1 mole = 74.5 g
How many moles of sodium carbonate are in 10.9 g sodium carbonate? Molar mass sodium carbonate 106 g

What is the molar ratio of iron(III) sulfate to sodium sulfate when iron(III) sulfate reacts with sodium carbonate? Fe2(SO4)3 + 3Na2CO3 Fe2(CO3)3 + 3Na2SO4

Fe2(SO4)3 + 3Na2CO3 Fe2(CO3)3 + 3Na2SO4

1 mole Fe2(SO4)3 = 3 moles Na2SO4

If 10 moles iron (III) sulfate reacts, how many moles sodium carbonate will form?Fe2(SO4)3 + 3Na2CO3 Fe2(CO3)3 + 3Na2SO4

Fe2(SO4)3 + 3Na2CO3 Fe2(CO3)3 + 3Na2SO4

10 moles Fe2(SO4) x 3 moles Na2CO3/1mole Fe2(SO4)3 = 30 molesNa2CO3

2H2 + O2 2H2O

15 gO2 X 1moleO/32 gO X 2moles H2O/moleO

= 0.94 moles water

If 46 g sodium metal reacts completely, then how many moles chlorine gas will be required to make sodium chloride?

2Na + Cl2 2NaCl

46gNa X 1moleNa/23gNa X 1mole Cl2/2molesNa

= 1 mole Cl2

If 100 g sodium chloride reacts completely with barium, then how many grams sodium metal will be obtained? 2NaCl + Ba  BaCl2 + 2Na

2NaCl + Ba  BaCl2 + 2Na

100gNaCl x 1mole NaCl/58.4 g NaCl x 2 mole Na/2 moles NaCl X 23 g/1mole Na

=39.32 g Na

How many liters fluorine gas in .87 moles of fluorine gas?
• 1 mole gas at STP (standard temperature and pressure, O degrees C and 1 atm pressure) = 22.4 L gas
2 H2S + 3 O2 2 SO2+ 2 H2OHow many moles of H2S are required to form 8.20 moles of SO2?
8.2 mol
• 8.2 mole SO2 x (2mol H2S/2 mol SO2)
2 NaClO3 2 NaCl + 3 O2 How many molecules of oxygen are produced when 80.0 grams of sodium chloride are produced?
1.23 x 1024 molecules

(80gA) x(1molA/58.4gA)x (3mol B/2molA)x(6.02x1023molecB)

Na2S2O3(aq) + 4Cl2(g) + 5H2O(aq) 2NaHSO4(aq) + 8HCl(aq)How many moles of H2O react if 5.24 x 1019molecules of HCl are formed?

5.44 x 10-5 mol B

(5.24 x 1019 molec A) x (1molA/6.02 x1023 molec A)x(5 molB/8molA)