a/
\(C\left(\frac{245}{6}\right)+O_2\left(\frac{245}{6}\right)\rightarrow CO_2\left(\frac{245}{6}\right)\)
\(S\left(0,09375\right)+O_2\left(0,09375\right)\rightarrow SO_2\left(0,09375\right)\)
\(m_S=500.0,6\%=3\)
\(\Rightarrow n_S=\frac{3}{32}=0,09375\)
\(\Rightarrow\%C=100\%-0,6\%-1,4\%=98\%\)
\(\Rightarrow m_C=500.98\%=490\)
\(\Rightarrow n_C=\frac{490}{12}=\frac{245}{6}\)
\(\Rightarrow n_{O_2}=\frac{245}{6}+0,09375=\frac{3929}{96}\)
\(\Rightarrow V_{O_2}=\frac{3929}{96}.22,4=916,77\)
\(\Rightarrow m_{CO_2}=\frac{245}{6}.44=1796,67\)
\(\Rightarrow m_{SO_2}=0,09375.64=6\)