If a reaction vessel initially contains only co and nh3 at concentrations of 1.00 m and 2.00 m, respectively, what will the concentration of hconh2 be at equilibrium?

This is an incomplete question, here is the complete question.

, Kc = 0.810

If a reaction vessel initially contains only CO and NH₃ at concentrations of 1.00 M and 2.00 M, respectively, what will the concentration of HCONH₂ be at equilibrium?

Answer : The concentration of HCONH₂ at equilibrium is, 3.69 M

Solution :  Given,

Initial concentration of and is, 1.00 M  and 2.00 M

The given equilibrium reaction is,

Initially              1.00   2.00           0

At equilibrium  (1.00-x) (2.00-x)    x

The expression of will be,

By solving the terms, we get:

x = 3.69 M

Thus, the concentration of HCONH₂ at equilibrium is, 3.69 M