Mass of methane required to produce 22 g of CO_2 after complete combustion is ____ g. (Given Molar mass in g mol^-1, C =12.0; H =1.0; O =16.0 )

Mass of methane required to produce $\displaystyle 22$ g of $\displaystyle \mathrm{CO}_2$ after complete combustion is $\displaystyle \_\_\_\_$ g. $$\begin{array}{ll} \text { (Given Molar mass in } \mathrm{g} \mathrm{~mol}^{-1} & \mathrm{C}=12.0 \\ & \mathrm{H}=1.0 \\ & \mathrm{O}=16.0 \text { ) } \end{array} $$