Ta có:
\(n_{SO2}=\frac{5,6}{22,4}=0,25\left(mol\right)\)
\(n_{OH^-}=n_{NaOH}+2n_{Ba\left(OH\right)2}=0,3\left(mol\right)\)
\(1< T< 1,2\Rightarrow\) Tạo cả 2 muối
\(SO_2+OH^-\rightarrow HSO_3^-\left(1\right)\)
a______a____________
\(SO_2+2OH^-\rightarrow SO_3^{2-}+H_2O\left(2\right)\)
b____2b_______________
\(\Rightarrow\left\{{}\begin{matrix}a=0,2\\b=0,05\end{matrix}\right.\)
\(n_{SO_3^{2-}}=0,05\left(mol\right)\Rightarrow n_{Ba^{2+}}=n_{Ba\left(OH\right)2}=0,1\left(mol\right)\)
\(\Rightarrow m_{BaSO3}=0,05.217=10,85\left(g\right)\)