Chapter 10.4, Problem 10.28QAP

The $K_{\text{c}}$ for the following reaction at ${\text{225}}^{\circ }\text{C}$ is $\text{1}.\text{7 x 1}{0}^{\text{2}}$ . If the equilibrium mixture contains
$0.{\text{18 M H}}_{\text{2}}$ and $0.0\text{2}0{\text{ M N}}_{\text{2}}$ , what is the molar concentration of ${\text{NH}}_{\text{3}}$ ?

${\text{3H}}_{\text{2}}\left(g\right)+{\text{ N}}_{\text{2}}\left(g\right)\rightleftharpoons {\text{ 2NH}}_{\text{3}}\left(g\right)$