Bổ sung câu 1:
\(SO_2+H_2O\rightarrow H_2SO_3\)
\(n_{SO2}=\frac{11,2}{22,4}=0,5\left(mol\right)\)
\(\Rightarrow CM_{H2SO3}=\frac{0,5}{0,1}=5M\)
\(d_{nuoc}=1\left(\frac{g}{mol}\right)\Rightarrow n_{H2O}=1.100=100\left(g\right)\)
\(\Rightarrow m_{dd\left(spu\right)}=m_{SO2}+m_{H2O}=0,5.64+100=132\left(g\right)\)
Theo PT , \(n_{H2SO3}=n_{SO2}=0,5\left(mol\right)\)
\(\Rightarrow C\%_{H2SO3}=\frac{0,5.82}{132}.100\%=31,06\%\)