II. Stoichiometry in the Real World * Limiting Reagents More Stoichiometry!
Stoichiometry
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By: Destina Slone May 9, 2011
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Stoichiometry. By: Destina Slone May 9, 2011. How much ammonium hydroxide is needed to react completely with 75.0g of copper (II) nitrate in a double replacement reaction?. What do we do first?. Create the equation. Balance the equation. Nothing, were finished. - PowerPoint PPT Presentation
Transcript of Stoichiometry
By: Destina Slone May 9, 2011
How much ammonium hydroxide is How much ammonium hydroxide is needed to react completely with 75.0g needed to react completely with 75.0g of copper (II) nitrate in a double of copper (II) nitrate in a double replacement reaction?replacement reaction?
What do we do first?
Create the equation.
Balance the equation. Nothing, were
finished.
Correct. Now which is the correct balanced equation?
NH4OH+Cu(NO3)2NH4(NO3)+Cu(OH)2
How much ammonium hydroxide is How much ammonium hydroxide is needed to react completely with 75.0g needed to react completely with 75.0g of copper (II) nitrate in a double of copper (II) nitrate in a double replacement reaction?replacement reaction?
2NH4OH+Cu(NO3)22NH4(NO3)+Cu(OH)2
NH+OH+Cu(NO3)2NH4(NO3)+Cu(OH)2
Retry
Panic?
Panic?
How much ammonium hydroxide is How much ammonium hydroxide is needed to react completely with 75.0g needed to react completely with 75.0g of copper (II) nitrate in a double of copper (II) nitrate in a double replacement reaction?replacement reaction?
2NH4OH+Cu(NO3)22NH4(NO3)+Cu(OH)2
What do we do now?
1 mol Cu(NO3)2
75.0gCu
75.0gCu(NO3)2
11gCu(NO3)2
75.0
Let us try this again.
Panic?
How much ammonium hydroxide is How much ammonium hydroxide is needed to react completely with 75.0g needed to react completely with 75.0g of copper (II) nitrate in a double of copper (II) nitrate in a double replacement reaction?replacement reaction?
2NH4OH+Cu(NO3)22NH4(NO3)+Cu(OH)2
Great job! But can you do what’s next?
75.0gCu(NO3)2
1 x
1 mol Cu (NO3)2
187.5gCu(NO3)2
187.5g Cu (NO3)2
1 mol Cu(NO3)2
1 mol (NO3)2
187.5 g Cu(NO3)2
Give it another go?
Panic?
How much ammonium hydroxide is How much ammonium hydroxide is needed to react completely with 75.0g needed to react completely with 75.0g of copper (II) nitrate in a double of copper (II) nitrate in a double replacement reaction?replacement reaction?
2NH4OH+Cu(NO3)22NH4(NO3)+Cu(OH)2
WOW! You’re good! But do you know what’s next?
75.0gCu(NO3)2
1 x1 mol Cu (NO3)2
187.5gCu(NO3)2x
1molNH4
2 mol NH4
2molCu(NO3)21molNH4OH
2molNH4OH1molCu(NO3)2
But don’t give up! You’re so close!But don’t give up! You’re so close!
Panic?
How much ammonium hydroxide is How much ammonium hydroxide is needed to react completely with 75.0g needed to react completely with 75.0g of copper (II) nitrate in a double of copper (II) nitrate in a double replacement reaction?replacement reaction?
WOW! Great!
2NH4OH+Cu(NO3)22NH4(NO3)+Cu(OH)2
75.0gCu(NO3)2
1 x1 mol Cu (NO3)2
187.5gCu(NO3)2x2molNH4OH
1molCu(NO3)2x
Um…now what?
20gNH4OH1molNH4OH
35gNH4OH1molNH4OH
1molNH4OH 35gNH4OH
Panic?
Redo!
How much ammonium hydroxide is How much ammonium hydroxide is needed to react completely with 75.0g needed to react completely with 75.0g of copper (II) nitrate in a double of copper (II) nitrate in a double replacement reaction?replacement reaction?
Perfect! You’re amazing! Now what is the answer?
75.0gCu(NO3)2
1 x1 mol Cu (NO3)2
187.5gCu(NO3)2x2molNH4OH
1molCu(NO3)2x35gNH4OH1molNH4OH=?
100.0 gNH4OH 24.0 gNH4OH 28.0 gNH4OH
You can do this.
Panic?
Click button below to see what you’ve won!
Click the man..
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