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Stoichiometry!. Paige Powell Period 8; April 2011 Mr. Kirk . Click to start!. Your question is…. How much sulfurous acid can be produce when 128g or sulfur dioxide combines with water?. What now?!. Set up the equation. Solve the problem. Give up. WRONG!!! - PowerPoint PPT Presentation
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Paige PowellPeriod 8; April 2011
Mr. Kirk
Stoichiometry!Stoichiometry!
Click to start!
Your question is…..Your question is…..
How much sulfurous acid can be produce when 128g or sulfur dioxide
combines with water?
What now?!Set up the equation
Give up
Solve the problem
WRONG!!WRONG!!!!
Why?: You haven’t even Why?: You haven’t even set up the equation set up the equation yet! (hint hint)yet! (hint hint)Click here to go back and try again!to go back and try again!
What makes you think you can What makes you think you can do that?!do that?!
Go to study tables… SmhGo to study tables… Smh
Click here to to
start over!start over!
Great Job .. And how Great Job .. And how would you do that?!would you do that?!
How much sulfurous acid can be produce when 128g or sulfur dioxide
combines with water?
SO + H O H SO 2 2 2 3
SO + H O H SO
2SO + 2H O 2H SO
3 2 2 3
2 2 2 3
You really know yourYou really know your chemicals! What now? chemicals! What now?How much sulfurous acid can be
produce when 128g or sulfur dioxide combines with water?
Balance the equation
128g SO1
2
128g H SO2 31
WRONG!!WRONG!!!!
Why?: You have the wrong Why?: You have the wrong chemicalschemicals! (check your periodic table)! (check your periodic table)Click here to go back and try again!to go back and try again!
WRONG!!WRONG!!!!
Why?: The equation is Why?: The equation is already already balanced! (use the laundry method to balanced! (use the laundry method to check)check)
Click here to go back and try again!to go back and try again!
Great job! What’s the next Great job! What’s the next step?step?
How much sulfurous acid can be produce when 128g or sulfur dioxide
combines with water?
128g SO1
2
128g SO1
2 1 mol SO64.1g SO
2
2
1 mol SO 65g SO
2
2
128g SO1
2 64.1g SO1 mol SO
2
2
x x
x
WRONG!!WRONG!!!!
Why?: Make sure you Why?: Make sure you add up the chemicals add up the chemicals correctly. (check the correctly. (check the periodic table)periodic table)
Click here to go back and try again!to go back and try again!
WRONG!!WRONG!!!!
Why?: During Why?: During gfm gfm you need to you need to cancel outcancel out gramsgrams!!Click here to go back and try again!to go back and try again!
Great job! What’s the next Great job! What’s the next step?step?
How much sulfurous acid can be produce when 128g or sulfur dioxide
combines with water?
128g SO1
2 1 mol SO64.1 g SO
2
2
x
128g SO1
2 1 mol SO64.1 g SO
2
2
x 2 32 mol H SO1 mol SO 2
1 mol SO__1 mol H SO2 3
2
128g SO1
2 1 mol SO64.1g SO
2
2
x 2 31 mol H SO1 mol SO 2
x
x
x
WRONG!!WRONG!!!!
Why?: In the balanced equation, there is only Why?: In the balanced equation, there is only one moleone mole of Sulfurous of Sulfurous Acid, Acid, not twonot two! !
Click here to go back and try again!to go back and try again!
WRONG!!WRONG!!!!
Why?: To cancel out the Sulfur Dioxide, it has to be placed Why?: To cancel out the Sulfur Dioxide, it has to be placed in the in the denominatordenominator! !
Click here to go back and try again!to go back and try again!
Super! What should we do Super! What should we do next?next?
How much sulfurous acid can be produce when 128g or sulfur dioxide
combines with water?
g
H SO 2 3
H SO 2 3x 1 mol
x H SO 2 31 mol
WRONG!!WRONG!!!!
Why?: You aren’t supposed to Why?: You aren’t supposed to dividedivide… I don’t even know what you’re … I don’t even know what you’re thinking right now! thinking right now!
For THAT kind of mistake, I’m going to have to make you For THAT kind of mistake, I’m going to have to make you START OVER!
WRONG!!WRONG!!!!
Why?: To end up with Why?: To end up with grams grams at the end of your equation, it needs to be at the end of your equation, it needs to be in the in the numerator numerator in your last section of the problem!in your last section of the problem!
Click here to go back and try again!to go back and try again!
Alright, so how many Alright, so how many grams would that be?grams would that be?
How much sulfurous acid can be produce when 128g or sulfur dioxide
combines with water?
82 g
83 g
82.1 g
WRONG!!WRONG!!!!
Why?: Make sure you Why?: Make sure you add up the chemicals add up the chemicals correctly, using correct correctly, using correct sig sig figsfigs. (check the periodic table). (check the periodic table)
Click here to go back and try again!Click here to go back and try again!
Okay smarty pants, Okay smarty pants, what’s the final answer?what’s the final answer?
164 g H2SO3
164 g SO2
165 g H2SO3
x 82.1gH SO 2 31 mol
128g SO1
2 1 mol SO64.1 g SO
2
2
x 2 31 mol H SO1 mol SO 2
x
WRONG!!WRONG!!!!
Why?: Make sure you’re Why?: Make sure you’re multiplying multiplying correctly, and using the correct correctly, and using the correct amount of amount of sig figssig figs!!
Click here to go back and try again!Click here to go back and try again!
WRONG!!WRONG!!!!
Why?: You don’t even have the right Why?: You don’t even have the right ending chemicalending chemical!!Click here to go back and try again!Click here to go back and try again!
CONGRATS!CONGRATS! You got it right!You got it right!
