Em tham khảo nha :
\(\begin{array}{l}
hh:S{O_2}(a\,mol);{O_2}(b\,mol)\\
{n_{hh}} = \dfrac{{4,48}}{{22,4}} = 0,2mol\\
{M_{hh}} = 24{M_{{H_2}}} = 48dvC\\
\frac{{{m_{S{O_2}}} + {m_{{O_2}}}}}{{{n_{hh}}}} = 48\\
\Rightarrow \left\{ \begin{array}{l}
a + b = 0,2\\
64a + 32b = 9,6
\end{array} \right.\\
\Rightarrow a = 0,1;b = 0,1\\
{m_{S{O_2}}} = 0,1 \times 64 = 6,4g\\
\% {V_{S{O_2}}} = \dfrac{{0,1}}{{0,2}} \times 100\% = 50\% \\
\% {V_{{O_2}}} = 100 - 50 = 50\% \\
\% S{O_2} = \dfrac{{6,4}}{{9,6}} \times 100\% = 66,7\% \\
\% {O_2} = 100 - 66,7 = 33,3\%
\end{array}\)