Chemistry(check my work)?

An equilibrium mixture of the following reaction was found to have [COF2] = 0.255 M and [CF4] = 0.118 M at 1000°C. What is the concentration of CO2?
2 COF2(g) ---> CO2(g) + CF4(g)
Keq = 2.00 at 1000°C

I know I need to put the numbers in the equation so this is what i did.

2.00= x (.118)/(.255)^2 and solve for x. I got 1.10. Is that correct and the correct number of sig figs?

thanks

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asked by Rachel
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