$\mathrm{CH}_{3} \mathrm{OH}$ can be synthesized by the reaction:
$$\mathrm{CO}(g)+2 \mathrm{H}_{2}(g) \longrightarrow \mathrm{CH}_{3} \mathrm{OH}(g)$$
What volume of $\mathrm{H}_{2}$ gas (in $\mathrm{L} ),$ at 748 $\mathrm{mmHg}$ and $86^{\circ} \mathrm{C},$ is required to synthesize 25.8 $\mathrm{g} \mathrm{CH}_{3} \mathrm{OH}$ . How many liters of CO gas, measured under the same conditions, are required?