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Topic: AP Chem Gas Problem  (Read 3505 times)

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Offline blstrs

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AP Chem Gas Problem
« on: November 06, 2009, 11:20:04 PM »
I've been staring at this for an hour.  I don't even know what to do. 

Calcium carbide reacts with water to produce acetylene gas: CaC2 (s) + 2H2O (l) >> Ca(OH)2 (aq) + C2H2 (g).  What volume of wet acetylene is collected at 25C and 715 torr when 5.20g CaC2 is reacted with an excess of water?  (Vapor pressure of water at 25C = 23.8 torr)
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Offline Borek

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Re: AP Chem Gas Problem
« Reply #1 on: November 07, 2009, 04:44:08 AM »
Start with stoichiometry - calculate how many moles of acetylene were produced.
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Offline blstrs

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Re: AP Chem Gas Problem
« Reply #2 on: November 07, 2009, 09:38:44 AM »
I have calculated moles of acetylene, but I am not exactly sure how to incorporate the wet into it...
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