Giả sử \(\left\{{}\begin{matrix}n_{H_2}=1\left(mol\right)\\n_{H_2S}=2\left(mol\right)\\n_{SO_2}=3\left(mol\right)\end{matrix}\right.\)
PTHH: \(2H_2+O_2\underrightarrow{t^o}2H_2O\)
1----------->1
\(H_2S+\dfrac{3}{2}O_2\underrightarrow{t^o}SO_2+H_2O\)
2------------->2----->2
\(2SO_2+O_2\underrightarrow{t^o,V_2O_5}2SO_3\)
5------------------>5
\(SO_3+H_2O\rightarrow H_2SO_4\)
3<------3------>3
\(H_2SO_4+nSO_3\rightarrow H_2SO_4.nSO_3\)
3----->3n
=> 3n = 2
=> n = \(\dfrac{2}{3}\)
=> Y là \(H_2SO_4.\dfrac{2}{3}SO_3\)