Homework Help: Chemistry

Posted by Sally on Friday, March 2, 2012 at 12:16am.

Fluorine reacts with oxygen to yield oxygen difluoride.

2 F2(g) + O2(g)<--> 2 OF2(g)

What is the value of K if the following concentrations are found at equilibrium: [O2]= 0.200 mol/L, [F2]=0.0100 mol/L, and [OF2]=0.0633 mol/L

Chemistry - DrBob222, Thursday, March 1, 2012 at 11:23pm

Kc = (OF2)^2/(F2)^2(O2)
Substitute and solve.

Chemistry - Sally, Friday, March 2, 2012 at 12:15am

I get 8.01 for an answer, but webassign says it's wrong.

[0.0633]^2/[o.0100]^2[o.200]=8.01378

Chemistry - DrBob222, Friday, March 2, 2012 at 12:23am
Sally, look at your original post. You must be punching the wrong buttons.

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