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Topic: Theoretical and Actual Yield problem I'm struggling with, can someone help pls?  (Read 1859 times)

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Offline dantheman7913

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Theoretical and Actual Yield problem I'm struggling with, can someone help pls?
« on: October 23, 2014, 07:20:00 PM »
Okay so the problem is:

"When 84.4 grams of iron(III) oxide reacts with an excess of carbon monoxide, then 57.8 grams of iron along with some carbon dioxide is produced. What is the percent yield of this equation?"

 I wrote out the formula to be Fe2O3 + 3CO ---> 2Fe + 3CO2 but I'm not sure how to factor label it. Can someone help?
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Offline Arkcon

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Re: Theoretical and Actual Yield problem I'm struggling with, can someone help pls?
« Reply #1 on: October 23, 2014, 09:30:46 PM »
I have no idea what 'factor label' means.  So let's just work with what the title you wrote says.  You have 84.4 grams of iron oxide, how much iron should you get?  Can you start by computing that first?
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Offline Borek

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Re: Theoretical and Actual Yield problem I'm struggling with, can someone help pls?
« Reply #2 on: October 24, 2014, 02:54:27 AM »
Factor-label means just doing stoichiometry with a variant of dimensional analysis approach:

http://www.chembuddy.com/?left=balancing-stoichiometry&right=dimensional-analysis

Quote from: dantheman7913 on October 23, 2014, 07:20:00 PM
I'm not sure how to

Try and show what you get.
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