Answer:
= 1.834 M
= 0.004 M
= 0.166 M
Step-by-step explanation:

Initial concentration of
= 0.15 M
Initial concentration of
= 2.0 M
The given balanced equilibrium reaction is,

Initial conc. 2 M 0.15 M 0
At eqm. conc. (2-x) M (1-6x) M (x) M
The expression for equilibrium constant for this reaction will be,
Now put all the given values in this expression, we get :
By solving the term 'x', we get :

= (2-x) = 2-0.166 = 1.834 M
= (1-6x) = 1-6(0.1660)= 0.004 M
= x = 0.166 M