\(a.n_{CO_2}=\dfrac{16,8}{22,4}=0,75mol\\ C+O_2\xrightarrow[]{t^0}CO_2\\ n_C=n_{O_2}=n_{CO_2}=0,75mol\\ m_C=0,75.12=9g\)
Độ tinh khiết: \(\dfrac{9}{10}\cdot100\%=90\%\)
\(b.n_{SO_2}=\dfrac{0,56}{22,4}=0,025mol\\ S+O_2\xrightarrow[]{t^0}SO_2\\ n_{O_2}=n_{SO_2}=0,025mol\\ V_{O_2,vừa.đủ}=\left(0,75+0,025\right).24,79=19,21225l\\ V_{O_2.dùng}=19,21225+\dfrac{19,21225.10\%}{100\%}=21,133475l\)