Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF4 via the reaction 2COF2(g)CO2(g)+CF4(g),Kc=4.00 If only COF2 is present initially at a concentration of 2.00M, what concentration of COF2 remains at equilibrium? Express your answer with the appropriate units. [1 X Incorrect; Try Again; 5 attempts remaining You may have omitted a square root somewhere in your calculation. You may want to review Hint 1. Express the equilibrium constant in terms of the change in concentration