Homework Help: ap chem

Posted by Anonymous on Sunday, February 13, 2011 at 6:39pm.

At a certain temperature, the equilibrium
constant Kc is 0.154 for the reaction
2 SO2(g) + O2(g) *) 2 SO3(g)
What concentration of SO3 would be in
equilibrium with 0.250moles of SO2 and 0.578
moles of O2 in a 1.00 liter container at this
temperature? Note: These latter moles are
the equilibrium values.
Answer in units of M.

ap chem - DrBob222, Sunday, February 13, 2011 at 9:34pm
2SO2 + O2 ==> 2SO3
K = 0.154 = (SO3)^2/(SO2)^2(O2)
Plug in SO2 and O2 equilibrium values and solve for the only unknown (SO3) you have.
ap chem - Anonymous, Sunday, February 13, 2011 at 11:46pm
I got .3335640868, it said I was wrong.

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