Chemistry - Concentration Terms Question with Solution | TestHub

${\mathrm{C}}_3{\mathrm{H}}_{8\left(g\right)} + 5{\mathrm{O}}_{2\left(g\right)}⟶3{\mathrm{CO}}_{2( \mathrm{g})}+4{\mathrm{H}}_2{\mathrm{O}}_{\left(\ell \right)}$

$\begin{array}{ccc}\mathrm{t}=0& 2.27 \mathrm{mole} & 31.25 \mathrm{mol}\end{array}$

$\begin{array}{lllll}t=\infty & 0& 19.9 \mathrm{mol} & 6.81 \mathrm{mol}& 9.08 \mathrm{mol}\end{array}$

mole fraction of ${\mathrm{CO}}_2$ in the final reaction mixture (heterogeneous)

${\mathrm{X}}_{{\mathrm{CO}}_2}=\frac{6.81}{19.9+6.81+9.08}$

$=0.1902=19.02\times {10}^{-2}\Rightarrow 19$