General Chemistry 2: Chemical Equilibrium

Find the equilibirium concentrations when starting with 0.50 M H$_2$ and 0.50 M Br$_2$

H$_2$ + Br$_2$ $\leftrightharpoons$ 2 HBr , K$_C$ = 143

A 2.16 L reaction vessel contains 0.186 mol HCONH$_2$, and 0 mol of NH$_3$ and CO. How many moles of each substance are in the equilibrium mixture at 400 K? What is the pressure in the vessel?

HCONH$_2$ $\leftrightharpoons$ NH$_3$ + CO , K$_C$ = 4.84