What Is the Value of the Equilibrium Constant for the Following

Essay

What is the value of the equilibrium constant for the following equilibrium? $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}+\mathrm{HBr}\rightleftharpoons$$\mathrm{CH}_{3} \mathrm{CH}_{2} \stackrel{+}{\mathrm{O}} \mathrm{H}_{2}+\mathrm{Br}^{-}$
$\quad$$\mathrm{p} K_{\mathrm{a}}=-8$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\mathrm{p} K_{\mathrm{a}}=-1.74$