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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: jhb1422 on February 17, 2009, 09:53:37 PM

Title: partial pressure at equilibrium?
Post by: jhb1422 on February 17, 2009, 09:53:37 PM

Hello, I've been looking over this, but cannot find a proper example in my notes...

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Ammonium Hydrogen Sulfide decomposes according to the following reaction, for which Kp= 0.11 at 250 degrees C.

NH4HS(solid) <----> H2S(gas) + NH3(g)

If 55.0 g of NH4(g) is placed in a sealed 5.0 L container, what is the partial pressure of NH3(gas) at equilibrium.
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Any and all help is greatly appreciated.

Title: Re: partial pressure at equilibrium?
Post by: Astrokel on February 17, 2009, 10:11:58 PM

Check this out on the part 'Determining equilibrium pressures': http://www.chem.purdue.edu/gchelp/howtosolveit/Equilibrium/Equilibrium_Concentrations.htm