$\left\{ \begin{align}  & 5gNe\times \frac{1mol\,Ne}{20g\,Ne}\times \frac{22/4L}{1mol\,Ne}=5/6L\,Ne \\  & 0/5{{H}_{2}}\times \frac{1mol\,{{H}_{2}}}{2g\,{{H}_{2}}}\times \frac{22/4L}{1mol\,{{H}_{2}}}=5/6L\,{{H}_{2}} \\ \end{align} \right.$   $\left\{ \begin{align}  & 22/4\,L\,He\times \frac{1mol\,He}{22/4\,L\,He}\times \frac{4g\,He}{1\,mol\,He}=4g\,He \\  & 11/2L\,C{{O}_{2}}\times \frac{1\,mol\,C{{O}_{2}}}{22/4\,L\,C{{O}_{2}}}\times \frac{44g\,C{{O}_{2}}}{1mol\,C{{O}_{2}}}=22\,g\,C{{O}_{2}} \\ \end{align} \right.$