Question

Carbonyl fluoride, COF2COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF4CF4 via the reaction 2COF2(g)⇌CO2(g)+CF4(g), Kc=5.002COF2(g)⇌CO2(g)+CF4(g), Kc=5.00 If only COF2COF2 is present initially at a concentration of 2.00 MM, what concentration of COF2COF2 remains at equilibrium? Express your answe

Answer 1

.36 M

Step-by-step explanation:

2COF₂(g)⇌CO₂(g)+CF₄(g)

2 0 0

2 - 2a a a

a x a / (2 - 2a)² = 5

a² / 4 ( 1 -a )² = 5

a / ( 1 - a ) = √20

a / ( 1 - a ) = 4.47

a = 4.47 - 4.47 a

5.47 a = 4.47

a = .82

Concentration of COF₂ in equilibrium

= 2 - 2 a

= 2 - 2 x .82

= .36 M