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April 23, 2014

April 23, 2014

Posted by **mel** on Saturday, November 17, 2007 at 10:02pm.

atm

(b) Calculate the pressure exerted by 0.5160 mol N2 in a 1.0000 L container at 24.6°C using the van der Waals equation.

atm

(c) Compare the results. (Write the percentage difference between the results, based on the higher value result.)

%

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**DrBob222**, Saturday, November 17, 2007 at 11:58pmSurely you know how to do these. Perhaps you just want to know what answer I get but I don't have the time to work these things unless I have a reason. If you truly don't understand them, explain what kind of problem you are having.

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**mel**, Sunday, November 18, 2007 at 12:03pmso i plugged int he information that i have from the question... i am using an electronic based hmwk. it says that the answers that i have gotten are wrong... here is what i have come up with....

with using PV=nRT

i got a pressure of 12.6012 atm...

with using the van der w.

i got apressure of 12.2816 rounded

am i even close?

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**DrBob222**, Sunday, November 18, 2007 at 1:14pmI have 12.61 atm. Is the T given as 24.6 or 24.60? If 24.6 then you are allowed 3 sifnificant figures and the answer would be 12.6 atm. If 24.60, then 12.61 atm would be the answer.

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**DrBob222**, Sunday, November 18, 2007 at 1:30pmFor the van der Waals question I have 12.75 but I think only three s.f. are allowed so that would round to 12.7. Check my arithmetic.

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**DrBob222**, Sunday, November 18, 2007 at 1:32pmor 12.8 if we round to the nearest whole even number.

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