a) Gọi \(\left\{{}\begin{matrix}n_C=a\left(mol\right)\\n_S=b\left(mol\right)\end{matrix}\right.\Rightarrow12a+32b=8,8\left(1\right)\)
\(n_{O_2}=\dfrac{8,96}{22,4}=0,4\left(mol\right)\)
PTHH:
\(S+O_2\xrightarrow[]{t^o}SO_2\)
a--->a----->a
\(C+O_2\xrightarrow[]{t^o}CO_2\)
b--->b----->b
=> a + b = 0,4 (2)
Từ (1), (2) => a = b = 0,2 (mol)
=> \(\left\{{}\begin{matrix}\%m_C=\dfrac{0,2.12}{8,8}.100\%=27,27\%\\\%m_S=100\%-27,27\%=72,73\%\end{matrix}\right.\)
b) \(\left\{{}\begin{matrix}m_{CO_2}=0,2.44=8,8\left(g\right)\\m_{SO_2}=0,2.64=12,8\left(g\right)\end{matrix}\right.\)