Question

Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium concentration of H2O(g).

C2H4(g) + H2O(g) C2H5OH(g) Kc = 9.0 × 103

[C2H4]eq = 0.015 M [C2H5OH]eq = 1.69 M

Answer 1

So write the Keq expression, substitute the concentrations given and solve for the concn of H2O.
Post your work if you get stuck.

Answer 2

1.68