\(n_{hhA}=\dfrac{4,48}{22,4}=0,2\left(mol\right)\Rightarrow m_{hhA}=0,2.30=6\left(g\right)\)
\(\Rightarrow\left\{{}\begin{matrix}x+y=0,2\\28x+32y=6\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=0,2-y\\28.\left(0,2-y\right)+32y=6\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=0,1\\y=0,1\end{matrix}\right.\)
\(\Rightarrow\left\{{}\begin{matrix}m_{N_2}=0,1.28=2,8\left(g\right)\\m_{O_2}=6-2,8=3,2\left(g\right)\end{matrix}\right.\)